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Atomoxetine

Generic Name: Atomoxetine hydrochloride
Dosage Form: capsule

WARNING: SUICIDAL IDEATION IN CHILDREN AND ADOLESCENTS

Atomoxetine capsules increased the risk of suicidal ideation in short-term studies in children or adolescents with Attention-Deficit/Hyperactivity Disorder (ADHD). Anyone considering the use of Atomoxetine capsules in a child or adolescent must balance this risk with the clinical need. Co-morbidities occurring with ADHD may be associated with an increase in the risk of suicidal ideation and/or behavior. Patients who are started on therapy should be monitored closely for suicidality (suicidal thinking and behavior), clinical worsening, or unusual changes in behavior. Families and caregivers should be advised of the need for close observation and communication with the prescriber. Atomoxetine capsules are approved for ADHD in pediatric and adult patients. Atomoxetine capsules are not approved for major depressive disorder.

Pooled analyses of short-term (6 to 18 weeks) placebo-controlled trials of Atomoxetine capsules in children and adolescents (a total of 12 trials involving over 2200 patients, including 11 trials in ADHD and 1 trial in enuresis) have revealed a greater risk of suicidal ideation early during treatment in those receiving Atomoxetine capsules compared to placebo. The average risk of suicidal ideation in patients receiving Atomoxetine capsules was 0.4% (5/1357 patients), compared to none in placebo-treated patients (851 patients). No suicides occurred in these trials [see Warnings and Precautions (5.1)].

Indications and Usage for Atomoxetine

Attention-Deficit/Hyperactivity Disorder (ADHD)

Atomoxetine capsules are indicated for the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD).

The efficacy of Atomoxetine capsules was established in seven clinical trials in outpatients with ADHD: four 6 to 9-week trials in pediatric patients (ages 6 to 18), two 10-week trial in adults, and one maintenance trial in pediatrics (ages 6 to 15) [see Clinical Studies (14)].

Diagnostic Considerations

A diagnosis of ADHD (DSM-IV) implies the presence of hyperactive-impulsive or inattentive symptoms that cause impairment and that were present before age 7 years. The symptoms must be persistent, must be more severe than is typically observed in individuals at a comparable level of development, must cause clinically significant impairment, e.g., in social, academic, or occupational functioning, and must be present in 2 or more settings, e.g., school (or work) and at home. The symptoms must not be better accounted for by another mental disorder.

The specific etiology of ADHD is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but also of special psychological, educational, and social resources. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the patient and not solely on the presence of the required number of DSM-IV characteristics.

For the Inattentive Type, at least 6 of the following symptoms must have persisted for at least 6 months: lack of attention to details/careless mistakes, lack of sustained attention, poor listener, failure to follow through on tasks, poor organization, avoids tasks requiring sustained mental effort, loses things, easily distracted, forgetful. For the Hyperactive-Impulsive Type, at least 6 of the following symptoms must have persisted for at least 6 months: fidgeting/squirming, leaving seat, inappropriate running/climbing, difficulty with quiet activities, “on the go,” excessive talking, blurting answers, can't wait turn, intrusive. For a Combined Type diagnosis, both inattentive and hyperactive-impulsive criteria must be met.

Need for Comprehensive Treatment Program

Atomoxetine capsules are indicated as an integral part of a total treatment program for ADHD that may include other measures (psychological, educational, social) for patients with this syndrome. Drug treatment may not be indicated for all patients with this syndrome. Drug treatment is not intended for use in the patient who exhibits symptoms secondary to environmental factors and/or other primary psychiatric disorders, including psychosis. Appropriate educational placement is essential in children and adolescents with this diagnosis and psychosocial intervention is often helpful. When remedial measures alone are insufficient, the decision to prescribe drug treatment medication will depend upon the physician's assessment of the chronicity and severity of the patient's symptoms.

Atomoxetine Dosage and Administration

Acute Treatment

Dosing of children and adolescents up to 70 kg body weight — Atomoxetine capsules should be initiated at a total daily dose of approximately 0.5 mg/kg and increased after a minimum of 3 days to a target total daily dose of approximately 1.2 mg/kg administered either as a single daily dose in the morning or as evenly divided doses in the morning and late afternoon/early evening. No additional benefit has been demonstrated for doses higher than 1.2 mg/kg/day [see Clinical Studies (14)].

The total daily dose in children and adolescents should not exceed 1.4 mg/kg or 100 mg, whichever is less.

Dosing of children and adolescents over 70 kg body weight and adults — Atomoxetine capsules should be initiated at a total daily dose of 40 mg and increased after a minimum of 3 days to a target total daily dose of approximately 80 mg administered either as a single daily dose in the morning or as evenly divided doses in the morning and late afternoon/early evening. After 2 to 4 additional weeks, the dose may be increased to a maximum of 100 mg in patients who have not achieved an optimal response. There are no data that support increased effectiveness at higher doses [see Clinical Studies (14)].

The maximum recommended total daily dose in children and adolescents over 70 kg and adults is 100 mg.

Maintenance/Extended Treatment

It is generally agreed that pharmacological treatment of ADHD may be needed for extended periods. The benefit of maintaining pediatric patients (ages 6-15 years) with ADHD on Atomoxetine capsules after achieving a response in a dose range of 1.2 to 1.8 mg/kg/day was demonstrated in a controlled trial. Patients assigned to Atomoxetine capsules in the maintenance phase were generally continued on the same dose used to achieve a response in the open label phase. The physician who elects to use Atomoxetine capsules for extended periods should periodically reevaluate the long-term usefulness of the drug for the individual patient [see Clinical Studies (14.1)].

General Dosing Information

Atomoxetine capsules may be taken with or without food.

Atomoxetine capsules can be discontinued without being tapered.

Atomoxetine capsules are not intended to be opened, they should be taken whole [see Patient Counseling Information (17.6)].

The safety of single doses over 120 mg and total daily doses above 150 mg have not been systematically evaluated.

Dosing in Specific Populations

Dosing adjustment for hepatically impaired patients — For those ADHD patients who have hepatic insufficiency (HI), dosage adjustment is recommended as follows: For patients with moderate HI (Child-Pugh Class B), initial and target doses should be reduced to 50% of the normal dose (for patients without HI). For patients with severe HI (Child-Pugh Class C), initial dose and target doses should be reduced to 25% of normal [see Use In Specific Populations (8.6)].

Dosing adjustment for use with a strong CYP2D6 inhibitor or in patients who are known to be CYP2D6 PMs — In children and adolescents up to 70 kg body weight administered strong CYP2D6 inhibitors, e.g., paroxetine, fluoxetine, and quinidine, or in patients who are known to be CYP2D6 PMs, Atomoxetine capsules should be initiated at 0.5 mg/kg/day and only increased to the usual target dose of 1.2 mg/kg/day if symptoms fail to improve after 4 weeks and the initial dose is well tolerated.

In children and adolescents over 70 kg body weight and adults administered strong CYP2D6 inhibitors, e.g., paroxetine, fluoxetine, and quinidine, Atomoxetine capsules should be initiated at 40 mg/day and only increased to the usual target dose of 80 mg/day if symptoms fail to improve after 4 weeks and the initial dose is well tolerated.

Dosage Forms and Strengths

Each capsule contains Atomoxetine HCl equivalent to 10 mg (Opaque White, Opaque White), 18 mg (Gold, Opaque White), 25 mg (Opaque Blue, Opaque White), 40 mg (Opaque Blue, Opaque Blue), 60 mg (Opaque Blue, Gold), 80 mg (Opaque Brown, Opaque White), or 100 mg (Opaque Brown, Opaque Brown) of Atomoxetine.

Contraindications

Hypersensitivity

Atomoxetine capsules are contraindicated in patients known to be hypersensitive to Atomoxetine or other constituents of the product [see Warnings and Precautions (5.8)].

Monoamine Oxidase Inhibitors (MAOI)

Atomoxetine capsules should not be taken with an MAOI, or within 2 weeks after discontinuing an MAOI. Treatment with an MAOI should not be initiated within 2 weeks after discontinuing Atomoxetine capsules. With other drugs that affect brain monoamine concentrations, there have been reports of serious, sometimes fatal reactions (including hyperthermia, rigidity, myoclonus, autonomic instability with possible rapid fluctuations of vital signs, and mental status changes that include extreme agitation progressing to delirium and coma) when taken in combination with an MAOI. Some cases presented with features resembling neuroleptic malignant syndrome. Such reactions may occur when these drugs are given concurrently or in close proximity [see Drug Interactions (7.1)].

Narrow Angle Glaucoma

In clinical trials, Atomoxetine capsule use was associated with an increased risk of mydriasis and therefore its use is not recommended in patients with narrow angle glaucoma.

Pheochromocytoma

Serious reactions, including elevated blood pressure and tachyarrhythmia, have been reported in patients with pheochromocytoma or a history of pheochromocytoma who received Atomoxetine capsules. Therefore, Atomoxetine capsules should not be taken by patients with pheochromocytoma or a history of pheochromocytoma.

Severe Cardiovascular Disorders

Atomoxetine capsules should not be used in patients with severe cardiac or vascular disorders whose condition would be expected to deteriorate if they experience increases in blood pressure or heart rate that could be clinically important (for example, 15 to 20 mm Hg in blood pressure or 20 beats per minute in heart rate). [See Warnings and Precautions (5.4)].

Warnings and Precautions

Suicidal Ideation

Atomoxetine capsules increased the risk of suicidal ideation in short-term studies in children and adolescents with Attention-Deficit/Hyperactivity Disorder (ADHD). Pooled analyses of short-term (6 to 18 weeks) placebo-controlled trials of Atomoxetine capsules in children and adolescents have revealed a greater risk of suicidal ideation early during treatment in those receiving Atomoxetine capsules. There were a total of 12 trials (11 in ADHD and 1 in enuresis) involving over 2200 patients (including 1357 patients receiving Atomoxetine capsules and 851 receiving placebo). The average risk of suicidal ideation in patients receiving Atomoxetine capsules was 0.4% (5/1357 patients), compared to none in placebo-treated patients. There was 1 suicide attempt among these approximately 2200 patients, occurring in a patient treated with Atomoxetine capsules. No suicides occurred in these trials. All reactions occurred in children 12 years of age or younger. All reactions occurred during the first month of treatment. It is unknown whether the risk of suicidal ideation in pediatric patients extends to longer-term use. A similar analysis in adult patients treated with Atomoxetine capsules for either ADHD or major depressive disorder (MDD) did not reveal an increased risk of suicidal ideation or behavior in association with the use of Atomoxetine capsules.

All pediatric patients being treated with Atomoxetine capsules should be monitored appropriately and observed closely for clinical worsening, suicidality, and unusual changes in behavior, especially during the initial few months of a course of drug therapy, or at times of dose changes, either increases or decreases.

The following symptoms have been reported with Atomoxetine capsules: anxiety, agitation, panic attacks, insomnia, irritability, hostility, aggressiveness, impulsivity, akathisia (psychomotor restlessness), hypomania and mania. Although a causal link between the emergence of such symptoms and the emergence of suicidal impulses has not been established, there is a concern that such symptoms may represent precursors to emerging suicidality. Thus, patients being treated with Atomoxetine capsules should be observed for the emergence of such symptoms.

Consideration should be given to changing the therapeutic regimen, including possibly discontinuing the medication, in patients who are experiencing emergent suicidality or symptoms that might be precursors to emerging suicidality, especially if these symptoms are severe or abrupt in onset, or were not part of the patient's presenting symptoms.

Families and caregivers of pediatric patients being treated with Atomoxetine capsules should be alerted about the need to monitor patients for the emergence of agitation, irritability, unusual changes in behavior, and the other symptoms described above, as well as the emergence of suicidality, and to report such symptoms immediately to healthcare providers. Such monitoring should include daily observation by families and caregivers.

Severe Liver Injury

Postmarketing reports indicate that Atomoxetine capsules can cause severe liver injury. Although no evidence of liver injury was detected in clinical trials of about 6000 patients, there have been rare cases of clinically significant liver injury that were considered probably or possibly related to Atomoxetine capsule use in postmarketing experience. Rare cases of liver failure have also been reported, including a case that resulted in a liver transplant. Because of probable underreporting, it is impossible to provide an accurate estimate of the true incidence of these reactions. Reported cases of liver injury occurred within 120 days of initiation of Atomoxetine in the majority of cases and some patients presented with markedly elevated liver enzymes [>20 X upper limit of normal (ULN)], and jaundice with significantly elevated bilirubin levels (>2 X ULN), followed by recovery upon Atomoxetine discontinuation. In one patient, liver injury, manifested by elevated hepatic enzymes up to 40 X ULN and jaundice with bilirubin up to 12 X ULN, recurred upon rechallenge, and was followed by recovery upon drug discontinuation, providing evidence that Atomoxetine capsules likely caused the liver injury. Such reactions may occur several months after therapy is started, but laboratory abnormalities may continue to worsen for several weeks after drug is stopped. The patient described above recovered from his liver injury, and did not require a liver transplant.

Atomoxetine capsules should be discontinued in patients with jaundice or laboratory evidence of liver injury, and should not be restarted. Laboratory testing to determine liver enzyme levels should be done upon the first symptom or sign of liver dysfunction (e.g., pruritus, dark urine, jaundice, right upper quadrant tenderness, or unexplained “flu like” symptoms) [see Warnings and Precautions (5.12); Patient Counseling Information (17.3)].

Serious Cardiovascular Events

Sudden Death and Pre-existing Structural Cardiac Abnormalities or Other Serious Heart Problems

Children and Adolescents — Sudden death has been reported in association with Atomoxetine treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, Atomoxetine generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the noradrenergic effects of Atomoxetine.

Adults — Sudden deaths, stroke, and myocardial infarction have been reported in adults taking Atomoxetine at usual doses for ADHD. Although the role of Atomoxetine in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Consideration should be given to not treating adults with clinically significant cardiac abnormalities.

Assessing Cardiovascular Status in Patients being Treated with Atomoxetine

Children, adolescents, or adults who are being considered for treatment with Atomoxetine should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during Atomoxetine treatment should undergo a prompt cardiac evaluation.

Effects on Blood Pressure and Heart Rate

Atomoxetine capsules should be used with caution in patients whose underlying medical conditions could be worsened by increases in blood pressure or heart rate such as certain patients with hypertension, tachycardia, or cardiovascular or cerebrovascular disease. It should not be used in patients with severe cardiac or vascular disorders whose condition would be expected to deteriorate if they experienced clinically important increases in blood pressure or heart rate [see Contraindications (4.5)]. Pulse and blood pressure should be measured at baseline, following Atomoxetine capsule dose increases, and periodically while on therapy to detect possible clinically important increases.

The following table provides short-term, placebo-controlled clinical trial data for the proportions of patients having an increase in: diastolic blood pressure ≥15 mm Hg; systolic blood pressure ≥20 mm Hg; heart rate greater than or equal to 20 bpm, in both the pediatric and adult populations (see Table 1).

Table 1a

a Abbreviations: bpm=beats per minute; DBP=diastolic blood pressure; HR=heart rate; mm Hg=millimeters mercury; SBP=systolic blood pressure.

b Proportion of patients meeting threshold at any one time during clinical trial.

Pediatric Acute
Placebo-Controlled
Adult Acute
Placebo-Controlled
Maximumb Endpoint Maximumb Endpoint
Atomoxetine Placebo Atomoxetine Placebo Atomoxetine Placebo Atomoxetine Placebo
% % % % % % % %
DBP
(≥15 mm Hg)
21.5 14.1 9.3 4.8 12.6 8.7 4.8 3.5
SBP
(≥20 mm Hg)
12.5 8.7 4.9 3.3 12.4 7.8 4.2 3.2
HR
(≥20 bpm)
23.4 11.5 12.2 3.8 22.4 8.3 10.2 2.0

In placebo-controlled registration studies involving pediatric patients, tachycardia was identified as an adverse event for 0.3% (5/1597) of these Atomoxetine capsule patients compared with 0% (0/934) of placebo patients. The mean heart rate increase in extensive metabolizer (EM) patients was 5.0 beats/minute, and in poor metabolizer (PM) patients 9.4 beats/minute.

In adult clinical trials where EM/PM status was available, the mean heart rate increase in PM patients was significantly higher than in EM patients (11 beats/minute versus 7.5 beats/minute). The heart rate effects could be clinically important in some PM patients.

In placebo-controlled registration studies involving adult patients, tachycardia was identified as an adverse event for 1.5% (8/540) of Atomoxetine capsule patients compared with 0.5% (2/402) of placebo patients.

In adult clinical trials where EM/PM status was available, the mean change from baseline in diastolic blood pressure in PM patients was higher than in EM patients (4.21 versus 2.13 mm Hg) as was the mean change from baseline in systolic blood pressure (PM: 2.75 versus EM: 2.40 mm Hg). The blood pressure effects could be clinically important in some PM patients.

Orthostatic hypotension and syncope have been reported in patients taking Atomoxetine capsules. In child and adolescent registration studies, 0.2% (12/5596) of Atomoxetine capsule-treated patients experienced orthostatic hypotension and 0.8% (46/5596) experienced syncope. In short-term child and adolescent registration studies, 1.8% (6/340) of Atomoxetine capsule-treated patients experienced orthostatic hypotension compared with 0.5% (1/207) of placebo-treated patients. Syncope was not reported during short-term child and adolescent placebo-controlled ADHD registration studies. Atomoxetine capsules should be used with caution in any condition that may predispose patients to hypotension, or conditions associated with abrupt heart rate or blood pressure changes.

Emergence of New Psychotic or Manic Symptoms

Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by Atomoxetine at usual doses. If such symptoms occur, consideration should be given to a possible causal role of Atomoxetine, and discontinuation of treatment should be considered. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.2% (4 patients with reactions out of 1939 exposed to Atomoxetine for several weeks at usual doses) of Atomoxetine-treated patients compared to 0 out of 1056 placebo-treated patients.

Screening Patients for Bipolar Disorder

In general, particular care should be taken in treating ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in patients at risk for bipolar disorder. Whether any of the symptoms described above represent such a conversion is unknown. However, prior to initiating treatment with Atomoxetine capsules, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression.

Aggressive Behavior or Hostility

Patients beginning treatment for ADHD should be monitored for the appearance or worsening of aggressive behavior or hostility. Aggressive behavior or hostility is often observed in children and adolescents with ADHD. In pediatric short-term controlled clinical trials, 21/1308 (1.6%) of Atomoxetine patients versus 9/806 (1.1%) of placebo-treated patients spontaneously reported treatment emergent hostility-related adverse events (overall risk ratio of 1.33 [95% C.I. 0.67-2.64 – not statistically significant]). In adult placebo-controlled clinical trials, 6/1697 (0.35%) of Atomoxetine capsule patients versus 4/1560 (0.26%) of placebo-treated patients spontaneously reported treatment emergent hostility-related adverse events (overall risk ratio of 1.38 [95% C.I. 0.39-4.88 – not statistically significant]). Although this is not conclusive evidence that Atomoxetine capsules cause aggressive behavior or hostility, these behaviors were more frequently observed in clinical trials among children, adolescents, and adults treated with Atomoxetine capsules compared to placebo.

Allergic Events

Although uncommon, allergic reactions, including anaphylactic reactions, angioneurotic edema, urticaria, and rash, have been reported in patients taking Atomoxetine capsules.

Effects on Urine Outflow from the Bladder

In adult ADHD controlled trials, the rates of urinary retention (1.7%, 9/540) and urinary hesitation (5.6%, 30/540) were increased among Atomoxetine subjects compared with placebo subjects (0%, 0/402 ; 0.5%, 2/402, respectively). Two adult Atomoxetine subjects and no placebo subjects discontinued from controlled clinical trials because of urinary retention. A complaint of urinary retention or urinary hesitancy should be considered potentially related to Atomoxetine.

Priapism

Rare postmarketing cases of priapism, defined as painful and nonpainful penile erection lasting more than 4 hours, have been reported for pediatric and adult patients treated with Atomoxetine capsules. The erections resolved in cases in which follow-up information was available, some following discontinuation of Atomoxetine capsules. Prompt medical attention is required in the event of suspected priapism.

Effects on Growth

Data on the long-term effects of Atomoxetine capsules on growth come from open-label studies, and weight and height changes are compared to normative population data. In general, the weight and height gain of pediatric patients treated with Atomoxetine capsules lag behind that predicted by normative population data for about the first 9-12 months of treatment. Subsequently, weight gain rebounds and at about 3 years of treatment, patients treated with Atomoxetine capsules have gained 17.9 kg on average, 0.5 kg more than predicted by their baseline data. After about 12 months, gain in height stabilizes, and at 3 years, patients treated with Atomoxetine capsules have gained 19.4 cm on average, 0.4 cm less than predicted by their baseline data (see Figure 1 below).

Figure 1: Mean Weight and Height Percentiles Over Time for Patients With Three Years of Atomoxetine Capsule Treatment

This growth pattern was generally similar regardless of pubertal status at the time of treatment initiation. Patients who were pre-pubertal at the start of treatment (girls ≤8 years old, boys ≤9 years old) gained an average of 2.1 kg and 1.2 cm less than predicted after three years. Patients who were pubertal (girls >8 to ≤13 years old, boys >9 to ≤14 years old) or late pubertal (girls >13 years old, boys >14 years old) had average weight and height gains that were close to or exceeded those predicted after three years of treatment.

Growth followed a similar pattern in both extensive and poor metabolizers (EMs, PMs). PMs treated for at least two years gained an average of 2.4 kg and 1.1 cm less than predicted, while EMs gained an average of 0.2 kg and 0.4 cm less than predicted.

In short-term controlled studies (up to 9 weeks), Atomoxetine capsule-treated patients lost an average of 0.4 kg and gained an average of 0.9 cm, compared to a gain of 1.5 kg and 1.1 cm in the placebo-treated patients. In a fixed-dose controlled trial, 1.3%, 7.1%, 19.3%, and 29.1% of patients lost at least 3.5% of their body weight in the placebo, 0.5, 1.2, and 1.8 mg/kg/day dose groups.

Growth should be monitored during treatment with Atomoxetine capsules.

Laboratory Tests

Routine laboratory tests are not required.

CYP2D6 metabolism — Poor metabolizers (PMs) of CYP2D6 have a 10-fold higher AUC and a 5-fold higher peak concentration to a given dose of Atomoxetine capsules compared with extensive metabolizers (EMs). Approximately 7% of a Caucasian population are PMs. Laboratory tests are available to identify CYP2D6 PMs. The blood levels in PMs are similar to those attained by taking strong inhibitors of CYP2D6. The higher blood levels in PMs lead to a higher rate of some adverse effects of Atomoxetine capsules [see Adverse Reactions (6.1)].

Concomitant Use of Potent CYP2D6 Inhibitors or Use in patients who are known to be CYP2D6 PMs

Atomoxetine is primarily metabolized by the CYP2D6 pathway to 4-hydroxyAtomoxetine. Dosage adjustment of Atomoxetine capsules may be necessary when coadministered with potent CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine) or when administered to CYP2D6 PMs. [See Dosage and Administration (2.4) and Drug Interactions (7.2)].

Adverse Reactions

Clinical Trials Experience

Atomoxetine capsules were administered to 5382 children or adolescent patients with ADHD and 1007 adults with ADHD in clinical studies. During the ADHD clinical trials, 1625 children and adolescent patients were treated for longer than 1 year and 2529 children and adolescent patients were treated for over 6 months.

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Child and Adolescent Clinical Trials

Reasons for discontinuation of treatment due to adverse reactions in child and adolescent clinical trials — In acute child and adolescent placebo-controlled trials, 3.0% (48/1613) of Atomoxetine subjects and 1.4% (13/945) placebo subjects discontinued for adverse reactions. For all studies, (including open-label and long-term studies), 6.3% of extensive metabolizer (EM) patients and 11.2% of poor metabolizer (PM) patients discontinued because of an adverse reaction. Among Atomoxetine capsule-treated patients, irritability (0.3%, N=5); somnolence (0.3%, N=5); aggression (0.2%, N=4); nausea (0.2%, N=4); vomiting (0.2%, N=4); abdominal pain (0.2%, N=4); constipation (0.1%, N=2); fatigue (0.1%, N=2); feeling abnormal (0.1%, N=2); and headache (0.1%, N=2) were the reasons for discontinuation reported by more than 1 patient.

Seizures — Atomoxetine capsules have not been systematically evaluated in pediatric patients with seizure disorder as these patients were excluded from clinical studies during the product's premarket testing. In the clinical development program, seizures were reported in 0.2% (12/5073) of children whose average age was 10 years (range 6 to 16 years). In these clinical trials, the seizure risk among poor metabolizers was 0.3% (1/293) compared to 0.2% (11/4741) for extensive metabolizers.

Commonly observed adverse reactions in acute child and adolescent, placebo-controlled trials — Commonly observed adverse reactions associated with the use of Atomoxetine capsules (incidence of 2% or greater) and not observed at an equivalent incidence among placebo-treated patients (Atomoxetine capsule incidence greater than placebo) are listed in Table 2. Results were similar in the BID and the QD trial except as shown in Table 3, which shows both BID and QD results for selected adverse reactions based on statistically significant Breslow-Day tests. The most commonly observed adverse reactions in patients treated with Atomoxetine capsules (incidence of 5% or greater and at least twice the incidence in placebo patients, for either BID or QD dosing) were: nausea, vomiting, fatigue, decreased appetite, abdominal pain, and somnolence (see Tables 2 and 3).

Additional data from ADHD clinical trials (controlled and uncontrolled) has shown that approximately 5 to 10% of pediatric patients experienced potentially clinically important changes in heart rate (≥20 beats per min) or blood pressure (≥15 to 20 mm Hg) [see Contraindications (4) and Warnings and Precautions (5)].

Table 2: Common Treatment–Emergent Adverse Reactions Associated with the Use of Atomoxetine Capsules in Acute (up to 18 weeks) Child and Adolescent Trials

a Reactions reported by at least 2% of patients treated with Atomoxetine, and greater than placebo. The following reactions did not meet this criterion but were reported by more Atomoxetine-treated patients than placebo-treated patients and are possibly related to Atomoxetine treatment: blood pressure increased, early morning awakening (terminal insomnia), flushing, mydriasis, sinus tachycardia, asthenia, palpitations, mood swings, constipation, and dyspepsia. The following reactions were reported by at least 2% of patients treated with Atomoxetine, and equal to or less than placebo: pharyngolaryngeal pain, insomnia (insomnia includes the terms, insomnia, initial insomnia, middle insomnia). The following reaction did not meet this criterion but shows a statistically significant dose relationship: pruritus.

b Abdominal pain includes the terms: abdominal pain upper, abdominal pain, stomach discomfort, abdominal discomfort, epigastric discomfort.

c Somnolence includes the terms: sedation, somnolence.

Adverse Reactiona Percentage of Patients Reporting Reaction
Atomoxetine Capsules
(N=1597)
Placebo
(N=934)
Gastrointestinal Disorders
   Abdominal painb 18 10
   Vomiting 11 6
   Nausea 10 5
General Disorders and Administration Site Conditions
   Fatigue 8 3
   Irritability 6 3
   Therapeutic response unexpected 2 1
Investigations
   Weight decreased 3 0
Metabolism and Nutritional Disorders
   Decreased appetite 16 4
   Anorexia 3 1
Nervous System Disorders
   Headache 19 15
   Somnolencec 11 4
   Dizziness 5 2
Skin and Subcutaneous Tissue Disorders
   Rash 2 1
Table 3: Common Treatment-Emergent Adverse Reactions Associated with the Use of Atomoxetine Capsules in Acute (up to 18 weeks) Child and Adolescent Trials

a Abdominal pain includes the terms: abdominal pain upper, abdominal pain, stomach discomfort, abdominal discomfort, epigastric discomfort.

b Constipation didn't meet the statistical significance on Breslow-Day test but is included in the table because of pharmacologic plausibility.

c Mood swings didn't meet the statistical significance on Breslow-Day test at 0.05 level but p-value was <0.1 (trend).

Adverse Reaction Percentage of Patients
Reporting Reaction from
BID Trials
Percentage of Patients
Reporting Reaction from
QD Trials
Atomoxetine Capsules
(N=715)
Placebo
(N=434)
Atomoxetine Capsules
(N=882)
Placebo
(N=500)
Gastrointestinal Disorders
   Abdominal paina 17 13 18 7
   Vomiting 11 8 11 4
   Nausea 7 6 13 4
   Constipationb 2 1 1 0
General Disorders
   Fatigue 6 4 9 2
Psychiatric Disorders
   Mood swingsc 2 0 1 1

The following adverse reactions occurred in at least 2% of child and adolescent CYP2D6 PM patients and were statistically significantly more frequent in PM patients compared with CYP2D6 EM patients: insomnia (11% of PMs, 6% of EMs); weight decreased (7% of PMs, 4% of EMs); constipation (7% of PMs, 4% of EMs); depression1 (7% of PMs, 4% of EMs); tremor (5% of PMs, 1% of EMs); excoriation (4% of PMs, 2% of EMs); middle insomnia (3% of PMs, 1% of EMs); conjunctivitis (3% of PMs, 1% of EMs); syncope (3% of PMs, 1% of EMs); early morning awakening (2% of PMs, 1% of EMs); mydriasis (2% of PMs, 1% of EMs); sedation (4% of PMs, 2% of EMs).

1Depression includes the following terms: depression, major depression, depressive symptoms, depressed mood, dysphoria.

Adult Clinical Trials

Reasons for discontinuation of treatment due to adverse reactions in acute adult placebo-controlled trials — In the acute adult placebo-controlled trials, 11.3% (61/541) Atomoxetine subjects and 3.0% (12/405) placebo subjects discontinued for adverse reactions. Among Atomoxetine capsule-treated patients, insomnia (0.9%, N=5); nausea (0.9%, N=5); chest pain (0.6%, N=3); fatigue (0.6%, N=3); anxiety (0.4%, N=2); erectile dysfunction (0.4%, N=2); mood swings (0.4%, N=2); nervousness (0.4%, N=2); palpitations (0.4%, N=2); and urinary retention (0.4%, N=2) were the reasons for discontinuation reported by more than 1 patient.

Seizures — Atomoxetine capsules have not been systematically evaluated in adult patients with a seizure disorder as these patients were excluded from clinical studies during the product's premarket testing. In the clinical development program, seizures were reported on 0.1% (1/748) of adult patients. In these clinical trials, no poor metabolizers (0/43) reported seizures compared to 0.1% (1/705) for extensive metabolizers.

Commonly observed adverse reactions in acute adult placebo-controlled trials — Commonly observed adverse reactions associated with the use of Atomoxetine capsules (incidence of 2% or greater) and not observed at an equivalent incidence among placebo-treated patients (Atomoxetine capsule incidence greater than placebo) are listed in Table 4. The most commonly observed adverse reactions in patients treated with Atomoxetine capsules (incidence of 5% or greater and at least twice the incidence in placebo patients) were: constipation, dry mouth, nausea, decreased appetite, dizziness, erectile dysfunction, and urinary hesitation (see Table 4).

Additional data from ADHD clinical trials (controlled and uncontrolled) has shown that approximately 5 to 10% of adult patients experienced potentially clinically important changes in heart rate (≥20 beats per min) or blood pressure (≥15 to 20 mm Hg) [see Contraindications (4) and Warnings and Precautions (5)].

Table 4: Common Treatment-Emergent Adverse Reactions Associated with the Use of Atomoxetine Capsules in Acute (up to 25 weeks) Adult Trials

a Reactions reported by at least 2% of patients treated with Atomoxetine, and greater than placebo. The following reactions did not meet this criterion but were reported by more Atomoxetine-treated patients than placebo-treated patients and are possibly related to Atomoxetine treatment: peripheral coldness, tachycardia, prostatitis, testicular pain, orgasm abnormal, flatulence, asthenia, feeling cold, muscle spasm, dysgeusia, agitation, restlessness, micturition urgency, pollakiuria, pruritus, urticaria, flushing, tremor, menstruation irregular, rash, and urinary retention. The following reactions were reported by at least 2% of patients treated with Atomoxetine, and equal to or less than placebo: anxiety, diarrhea, back pain, headache, and oropharyngeal pain.

b Abdominal pain includes the terms: abdominal pain upper, abdominal pain, stomach discomfort, abdominal discomfort, epigastric discomfort.

c Somnolence includes the terms: sedation, somnolence.

d Insomnia includes the terms: insomnia, initial insomnia, middle insomnia, and terminal insomnia.

e Urinary hesitation includes the terms: urinary hesitation, urine flow decreased.

f Based on total number of males (Atomoxetine capsules, N=943; placebo, N=869).

g Based on total number of females (Atomoxetine capsules, N=754; placebo, N=691).

Adverse Reactiona Percentage of Patients Reporting Reaction

System Organ Class/Adverse Reaction
Atomoxetine Capsules
(N=1697)
Placebo
(N=1560)
Cardiac Disorders
   Palpitations 3 1
Gastrointestinal Disorders
   Dry mouth 20 5
   Nausea 26 6
   Constipation 8 3
   Abdominal painb 7 4
   Dyspepsia 4 2
   Vomiting 4 2
General Disorders and Administration Site Conditions
   Fatigue 10 6
   Chills 3 0
   Feeling jittery 2 1
   Irritability 5 3
   Thirst 2 1
Investigations
   Weight decreased 2 1
Metabolism and Nutritional Disorders
   Decreased appetite 16 3
Nervous System Disorders
   Dizziness 8 3
   Somnolencec 8 5
   Paraesthesia 3 0
Psychiatric Disorders
   Abnormal dreams 4 3
   Insomniad 15 8
   Libido decreased 3 1
   Sleep disorder 3 1
Renal and Urinary Disorders
   Urinary hesitatione 6 1
   Dysuria 2 0
Reproductive System and Breast Disorders
   Erectile dysfunctionf 8 1
   Dysmenorrheag 3 2
   Ejaculation delayedf and/or ejaculation disorderf 4 1
Skin and Subcutaneous Tissue Disorders
   Hyperhidrosis 4 1
Vascular Disorders
   Hot flush 3 0

The following adverse events occurred in at least 2% of adult CYP2D6 poor metaboliser (PM) patients and were statistically significantly more frequent in PM patients compared to CYP2D6 extensive metaboliser (EM) patients: vision blurred (4% of PMs, 1% of EMs); dry mouth (35% of PMs, 17% of EMs); constipation (11% of PMs, 7% of EMs); feeling jittery (5% of PMs, 2% of EMs); decreased appetite (23% of PMs, 15% of EMs); tremor (5% of PMs, 1% of EMs); insomnia (19% of PMs, 11% of EMs); sleep disorder (7% of PMs, 3% of EMs); middle insomnia (5% of PMs, 3% of EMs); terminal insomnia (3% of PMs, 1% of EMs); urinary retention (6% of PMs, 1% of EMs); erectile dysfunction (21% of PMs, 9% of EMs); ejaculation disorder (6% of PMs, 2% of EMs); hyperhidrosis (15% of PMs, 7% of EMs); peripheral coldness (3% of PMs, 1% of EMs).

Male and female sexual dysfunction — Atomoxetine appears to impair sexual function in some patients. Changes in sexual desire, sexual performance, and sexual satisfaction are not well assessed in most clinical trials because they need special attention and because patients and physicians may be reluctant to discuss them. Accordingly, estimates of the incidence of untoward sexual experience and performance cited in product labeling are likely to underestimate the actual incidence. Table 4 above displays the incidence of sexual side effects reported by at least 2% of adult patients taking Atomoxetine capsules in placebo-controlled trials.

There are no adequate and well-controlled studies examining sexual dysfunction with Atomoxetine capsule treatment. While it is difficult to know the precise risk of sexual dysfunction associated with the use of Atomoxetine capsules, physicians should routinely inquire about such possible side effects.

Postmarketing Spontaneous Reports

The following adverse reactions have been identified during post approval use of Atomoxetine capsules. Unless otherwise specified, these adverse reactions have occurred in adults and children and adolescents. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Cardiovascular system — QT prolongation, syncope.

Peripheral vascular effects — Raynaud's phenomenon.

General disorders and administration site conditions — Lethargy.

Musculoskeletal system — Rhabdomyolysis.

Nervous system disorders — Hypoaesthesia; paraesthesia in children and adolescents; sensory disturbances; tics.

Psychiatric disorders — Depression and depressed mood; anxiety, libido changes.

Seizures — Seizures have been reported in the postmarketing period. The postmarketing seizure cases include patients with pre-existing seizure disorders and those with identified risk factors for seizures, as well as patients with neither a history of nor identified risk factors for seizures. The exact relationship between Atomoxetine capsules and seizures is difficult to evaluate due to uncertainty about the background risk of seizures in ADHD patients.

Skin and subcutaneous tissue disorders — Alopecia, hyperhidrosis.

Urogenital system — Male pelvic pain; urinary hesitation in children and adolescents; urinary retention in children and adolescents.

Drug Interactions

Monoamine Oxidase Inhibitors

With other drugs that affect brain monoamine concentrations, there have been reports of serious, sometimes fatal reactions (including hyperthermia, rigidity, myoclonus, autonomic instability with possible rapid fluctuations of vital signs, and mental status changes that include extreme agitation progressing to delirium and coma) when taken in combination with an MAOI. Some cases presented with features resembling neuroleptic malignant syndrome. Such reactions may occur when these drugs are given concurrently or in close proximity [see Contraindications (4.2)].

Effect of CYP2D6 Inhibitors on Atomoxetine

In extensive metabolizers (EMs), inhibitors of CYP2D6 (e.g., paroxetine, fluoxetine, and quinidine) increase Atomoxetine steady-state plasma concentrations to exposures similar to those observed in poor metabolizers (PMs). In EM individuals treated with paroxetine or fluoxetine, the AUC of Atomoxetine is approximately 6- to 8-fold and Css, max is about 3- to 4-fold greater than Atomoxetine alone.

In vitro studies suggest that coadministration of cytochrome P450 inhibitors to PMs will not increase the plasma concentrations of Atomoxetine.

Antihypertensive Drugs and Pressor Agents

Because of possible effects on blood pressure, Atomoxetine capsules should be used cautiously with antihypertensive drugs and pressor agents (e.g., dopamine, dobutamine) or other drugs that increase blood pressure.

Albuterol

Atomoxetine capsules should be administered with caution to patients being treated with systemically-administered (oral or intravenous) albuterol (or other beta2 agonists) because the action of albuterol on the cardiovascular system can be potentiated resulting in increases in heart rate and blood pressure. Albuterol (600 mcg iv over 2 hours) induced increases in heart rate and blood pressure. These effects were potentiated by Atomoxetine (60 mg BID for 5 days) and were most marked after the initial coadministration of albuterol and Atomoxetine. However, these effects on heart rate and blood pressure were not seen in another study after the coadministration with inhaled dose of albuterol (200-800 mcg) and Atomoxetine (80 mg QD for 5 days) in 21 healthy Asian subjects who were excluded for poor metabolizer status.

Effect of Atomoxetine on P450 Enzymes

Atomoxetine did not cause clinically important inhibition or induction of cytochrome P450 enzymes, including CYP1A2, CYP3A, CYP2D6, and CYP2C9.

CYP3A Substrate (e.g., Midazolam) — Coadministration of Atomoxetine capsules (60 mg BID for 12 days) with midazolam, a model compound for CYP3A4 metabolized drugs (single dose of 5 mg), resulted in 15% increase in AUC of midazolam. No dose adjustment is recommended for drugs metabolized by CYP3A.

CYP2D6 Substrate (e.g., Desipramine) — Coadministration of Atomoxetine capsules (40 or 60 mg BID for 13 days) with desipramine, a model compound for CYP2D6 metabolized drugs (single dose of 50 mg), did not alter the pharmacokinetics of desipramine. No dose adjustment is recommended for drugs metabolized by CYP2D6.

Alcohol

Consumption of ethanol with Atomoxetine capsules did not change the intoxicating effects of ethanol.

Methylphenidate

Coadministration of methylphenidate with Atomoxetine capsules did not increase cardiovascular effects beyond those seen with methylphenidate alone.

Drugs Highly Bound to Plasma Protein

In vitro drug-displacement studies were conducted with Atomoxetine and other highly-bound drugs at therapeutic concentrations. Atomoxetine did not affect the binding of warfarin, acetylsalicylic acid, phenytoin, or diazepam to human albumin. Similarly, these compounds did not affect the binding of Atomoxetine to human albumin.

Drugs that Affect Gastric pH

Drugs that elevate gastric pH (magnesium hydroxide/aluminum hydroxide, omeprazole) had no effect on Atomoxetine capsule bioavailability.

USE IN SPECIFIC POPULATIONS

Pregnancy

Pregnancy Category C — Pregnant rabbits were treated with up to 100 mg/kg/day of Atomoxetine by gavage throughout the period of organogenesis. At this dose, in 1 of 3 studies, a decrease in live fetuses and an increase in early resorptions was observed. Slight increases in the incidences of atypical origin of carotid artery and absent subclavian artery were observed. These findings were observed at doses that caused slight maternal toxicity. The no-effect dose for these findings was 30 mg/kg/day. The 100 mg/kg dose is approximately 23 times the maximum human dose on a mg/m2 basis; plasma levels (AUC) of Atomoxetine at this dose in rabbits are estimated to be 3.3 times (extensive metabolizers) or 0.4 times (poor metabolizers) those in humans receiving the maximum human dose.

Rats were treated with up to approximately 50 mg/kg/day of Atomoxetine (approximately 6 times the maximum human dose on a mg/m2 basis) in the diet from 2 weeks (females) or 10 weeks (males) prior to mating through the periods of organogenesis and lactation. In 1 of 2 studies, decreases in pup weight and pup survival were observed. The decreased pup survival was also seen at 25 mg/kg (but not at 13 mg/kg). In a study in which rats were treated with Atomoxetine in the diet from 2 weeks (females) or 10 weeks (males) prior to mating throughout the period of organogenesis, a decrease in fetal weight (female only) and an increase in the incidence of incomplete ossification of the vertebral arch in fetuses were observed at 40 mg/kg/day (approximately 5 times the maximum human dose on a mg/m2 basis) but not at 20 mg/kg/day.

No adverse fetal effects were seen when pregnant rats were treated with up to 150 mg/kg/day (approximately 17 times the maximum human dose on a mg/m2 basis) by gavage throughout the period of organogenesis.

No adequate and well-controlled studies have been conducted in pregnant women. Atomoxetine capsules should not be used during pregnancy unless the potential benefit justifies the potential risk to the fetus.

Labor and Delivery

Parturition in rats was not affected by Atomoxetine. The effect of Atomoxetine capsules on labor and delivery in humans is unknown.

Nursing Mothers

Atomoxetine and/or its metabolites were excreted in the milk of rats. It is not known if Atomoxetine is excreted in human milk. Caution should be exercised if Atomoxetine capsules are administered to a nursing woman.

Pediatric Use

Anyone considering the use of Atomoxetine capsules in a child or adolescent must balance the potential risks with the clinical need [see Boxed Warning and Warnings and Precautions (5.1)].

The pharmacokinetics of Atomoxetine in children and adolescents are similar to those in adults. The safety, efficacy, and pharmacokinetics of Atomoxetine in pediatric patients less than 6 years of age have not been evaluated.

A study was conducted in young rats to evaluate the effects of Atomoxetine capsules on growth and neurobehavioral and sexual development. Rats were treated with 1, 10, or 50 mg/kg/day (approximately 0.2, 2, and 8 times, respectively, the maximum human dose on a mg/m2 basis) of Atomoxetine given by gavage from the early postnatal period (Day 10 of age) through adulthood. Slight delays in onset of vaginal patency (all doses) and preputial separation (10 and 50 mg/kg), slight decreases in epididymal weight and sperm number (10 and 50 mg/kg), and a slight decrease in corpora lutea (50 mg/kg) were seen, but there were no effects on fertility or reproductive performance. A slight delay in onset of incisor eruption was seen at 50 mg/kg. A slight increase in motor activity was seen on Day 15 (males at 10 and 50 mg/kg and females at 50 mg/kg) and on Day 30 (females at 50 mg/kg) but not on Day 60 of age. There were no effects on learning and memory tests. The significance of these findings to humans is unknown.

Geriatric Use

The safety, efficacy and pharmacokinetics of Atomoxetine capsules in geriatric patients has not been evaluated.

Hepatic Insufficiency

Atomoxetine exposure (AUC) is increased, compared with normal subjects, in EM subjects with moderate (Child-Pugh Class B) (2-fold increase) and severe (Child-Pugh Class C) (4-fold increase) hepatic insufficiency. Dosage adjustment is recommended for patients with moderate or severe hepatic insufficiency [see Dosage and Administration (2.3)].

Renal Insufficiency

EM subjects with end stage renal disease had higher systemic exposure to Atomoxetine than healthy subjects (about a 65% increase), but there was no difference when exposure was corrected for mg/kg dose. Atomoxetine capsules can therefore be administered to ADHD patients with end stage renal disease or lesser degrees of renal insufficiency using the normal dosing regimen.

Gender

Gender did not influence Atomoxetine disposition.

Ethnic Origin

Ethnic origin did not influence Atomoxetine disposition (except that PMs are more common in Caucasians).

Patients with Concomitant Illness

Tics in patients with ADHD and comorbid Tourette's Disorder — Atomoxetine administered in a flexible dose range of 0.5 to 1.5 mg/kg/day (mean dose of 1.3 mg/kg/day) and placebo were compared in 148 randomized pediatric (age 7-17 years) subjects with a DSM-IV diagnosis of ADHD and comorbid tic disorder in an 18 week, double-blind, placebo-controlled study in which the majority (80%) enrolled in this trial with Tourette's Disorder (Tourette's Disorder: 116 subjects; chronic motor tic disorder: 29 subjects). A non-inferiority analysis revealed that Atomoxetine capsules did not worsen tics in these patients as determined by the Yale Global Tic Severity Scale Total Score (YGTSS). Out of 148 patients who entered the acute treatment phase, 103 (69.6%) patients discontinued the study. The primary reason for discontinuation in both the Atomoxetine (38 of 76 patients, 50.0%) and placebo (45 of 72 patients, 62.5%) treatment groups was identified as lack of efficacy with most of the patients discontinuing at Week 12. This was the first visit where patients with a CGI-S≥4 could also meet the criteria for “clinical non-responder” (CGI-S remained the same or increased from study baseline) and be eligible to enter an open-label extension study with Atomoxetine. There have been postmarketing reports of tics [see Adverse Reactions (6.2)].

Anxiety in patients with ADHD and comorbid Anxiety Disorders – In two post-marketing, double-blind, placebo-controlled trials, it has been demonstrated that treating patients with ADHD and comorbid anxiety disorders with Atomoxetine capsules does not worsen their anxiety.

In a 12-week double-blind, placebo-controlled trial, 176 patients, aged 8-17, who met DSM-IV criteria for ADHD and at least one of the anxiety disorders of separation anxiety disorder, generalized anxiety disorder or social phobia were randomized. Following a 2-week double-blind placebo lead-in, Atomoxetine capsules were initiated at 0.8 mg/kg/day with increase to a target dose of 1.2 mg/kg/day (median dose 1.30 mg/kg/day +/- 0.29 mg/kg/day). Atomoxetine capsules did not worsen anxiety in these patients as determined by the Pediatric Anxiety Rating Scale (PARS). Of the 158 patients who completed the double-blind placebo lead-in, 26 (16%) patients discontinued the study.

In a separate 16-week, double-blind, placebo-controlled trial, 442 patients aged 18-65, who met DSM-IV criteria for adult ADHD and social anxiety disorder (23% of whom also had Generalized Anxiety Disorder) were randomized. Following a 2-week double-blind placebo lead-in, Atomoxetine capsules were initiated at 40 mg/day to a maximum dose of 100 mg/day (mean daily dose 83 mg/day +/- 19.5 mg/day). Atomoxetine capsules did not worsen anxiety in these patients as determined by the Liebowitz Social Anxiety Scale (LSAS). Of the 413 patients who completed the double-blind placebo lead-in, 149 (36.1%) patients discontinued the study. There have been postmarketing reports of anxiety [see Adverse Reactions (6.2)].

Drug Abuse and Dependence

Controlled Substance

Atomoxetine capsules are not a controlled substance.

Abuse

In a randomized, double-blind, placebo-controlled, abuse-potential study in adults comparing effects of Atomoxetine capsules and placebo, Atomoxetine capsules were not associated with a pattern of response that suggested stimulant or euphoriant properties.

Dependence

Clinical study data in over 2000 children, adolescents, and adults with ADHD and over 1200 adults with depression showed only isolated incidents of drug diversion or inappropriate self-administration associated with Atomoxetine capsules. There was no evidence of symptom rebound or adverse reactions suggesting a drug-discontinuation or withdrawal syndrome.

Animal Experience — Drug discrimination studies in rats and monkeys showed inconsistent stimulus generalization between Atomoxetine and cocaine.

Overdosage

Human Experience

There is limited clinical trial experience with Atomoxetine capsule overdose. During postmarketing, there have been fatalities reported involving a mixed ingestion overdose of Atomoxetine capsules and at least one other drug. There have been no reports of death involving overdose of Atomoxetine capsules alone, including intentional overdoses at amounts up to 1400 mg. In some cases of overdose involving Atomoxetine capsules, seizures have been reported. The most commonly reported symptoms accompanying acute and chronic overdoses of Atomoxetine capsules were gastrointestinal symptoms, somnolence, dizziness, tremor, and abnormal behavior. Hyperactivity and agitation have also been reported. Signs and symptoms consistent with mild to moderate sympathetic nervous system activation (e.g., tachycardia, blood pressure increased, mydriasis, dry mouth) have also been observed. Most events were mild to moderate. Less commonly, there have been reports of QT prolongation and mental changes, including disorientation and hallucinations [see Clinical Pharmacology (12.2)].

Management of Overdose

Consult with a Certified Poison Control Center for up to date guidance and advice. Because Atomoxetine is highly protein-bound, dialysis is not likely to be useful in the treatment of overdose.

Atomoxetine Description

Atomoxetine capsules are a selective norepinephrine reuptake inhibitor. Atomoxetine HCl is the R(-) isomer as determined by x-ray diffraction. The chemical designation is (-)-N-Methyl-3-phenyl-3-(o-tolyloxy)-propylamine hydrochloride. The molecular formula is C17H21NO•HCl, which corresponds to a molecular weight of 291.82. The chemical structure is:

Atomoxetine HCl is a white to practically white solid, which has a solubility of 27.8 mg/mL in water.

Atomoxetine capsules are intended for oral administration only.

Each capsule contains Atomoxetine HCl equivalent to 10, 18, 25, 40, 60, 80, or 100 mg of Atomoxetine. The capsules also contain pregelatinized starch and dimethicone. The capsule shells contain gelatin, sodium lauryl sulfate, and other inactive ingredients. The capsule shells also contain one or more of the following:

FD&C Blue No. 2, synthetic yellow iron oxide, titanium dioxide, red iron oxide. The capsules are imprinted with edible black ink.

Atomoxetine - Clinical Pharmacology

Mechanism of Action

The precise mechanism by which Atomoxetine produces its therapeutic effects in Attention-Deficit/Hyperactivity Disorder (ADHD) is unknown, but is thought to be related to selective inhibition of the pre-synaptic norepinephrine transporter, as determined in ex vivo uptake and neurotransmitter depletion studies.

Pharmacodynamics

An exposure-response analysis encompassing doses of Atomoxetine (0.5, 1.2 or 1.8 mg/kg/day) or placebo demonstrated Atomoxetine exposure correlates with efficacy as measured by the Attention-Deficit/Hyperactivity Disorder Rating Scale-IV-Parent Version: Investigator administered and scored. The exposure-efficacy relationship was similar to that observed between dose and efficacy with median exposures at the two highest doses resulting in near maximal changes from baseline [see Clinical Studies (14.2)].

Cardiac Electrophysiology — The effect of Atomoxetine capsules on QTc prolongation was evaluated in a randomized, double-blinded, positive-(moxifloxacin 400 mg) and placebo-controlled, cross-over study in healthy male CYP2D6 poor metabolizers. A total of 120 healthy subjects were administered Atomoxetine capsules (20 mg and 60 mg) twice daily for 7 days. No large changes in QTc interval (i.e., increases >60 msec from baseline, absolute QTc >480 msec) were observed in the study. However, small changes in QTc interval cannot be excluded from the current study, because the study failed to demonstrate assay sensitivity. There was a slight increase in QTc interval with increased Atomoxetine concentration.

Pharmacokinetics

Atomoxetine is well-absorbed after oral administration and is minimally affected by food. It is eliminated primarily by oxidative metabolism through the cytochrome P450 2D6 (CYP2D6) enzymatic pathway and subsequent glucuronidation. Atomoxetine has a half-life of about 5 hours. A fraction of the population (about 7% of Caucasians and 2% of African Americans) are poor metabolizers (PMs) of CYP2D6 metabolized drugs. These individuals have reduced activity in this pathway resulting in 10-fold higher AUCs, 5-fold higher peak plasma concentrations, and slower elimination (plasma half-life of about 24 hours) of Atomoxetine compared with people with normal activity [extensive metabolizers (EMs)]. Drugs that inhibit CYP2D6, such as fluoxetine, paroxetine, and quinidine, cause similar increases in exposure.

The pharmacokinetics of Atomoxetine have been evaluated in more than 400 children and adolescents in selected clinical trials, primarily using population pharmacokinetic studies. Single-dose and steady-state individual pharmacokinetic data were also obtained in children, adolescents, and adults. When doses were normalized to a mg/kg basis, similar half-life, Cmax, and AUC values were observed in children, adolescents, and adults. Clearance and volume of distribution after adjustment for body weight were also similar.

Absorption and distribution — Atomoxetine is rapidly absorbed after oral administration, with absolute bioavailability of about 63% in EMs and 94% in PMs. Maximal plasma concentrations (Cmax) are reached approximately 1 to 2 hours after dosing.

Atomoxetine capsules can be administered with or without food. Administration of Atomoxetine capsules with a standard high-fat meal in adults did not affect the extent of oral absorption of Atomoxetine (AUC), but did decrease the rate of absorption, resulting in a 37% lower Cmax, and delayed Tmax by 3 hours. In clinical trials with children and adolescents, administration of Atomoxetine capsules with food resulted in a 9% lower Cmax.

The steady-state volume of distribution after intravenous administration is 0.85 L/kg indicating that Atomoxetine distributes primarily into total body water. Volume of distribution is similar across the patient weight range after normalizing for body weight.

At therapeutic concentrations, 98% of Atomoxetine in plasma is bound to protein, primarily albumin.

Metabolism and elimination — Atomoxetine is metabolized primarily through the CYP2D6 enzymatic pathway. People with reduced activity in this pathway (PMs) have higher plasma concentrations of Atomoxetine compared with people with normal activity (EMs). For PMs, AUC of Atomoxetine is approximately 10-fold and Css, max is about 5-fold greater than EMs. Laboratory tests are available to identify CYP2D6 PMs. Coadministration of Atomoxetine capsules with potent inhibitors of CYP2D6, such as fluoxetine, paroxetine, or quinidine, results in a substantial increase in Atomoxetine plasma exposure, and dosing adjustment may be necessary [see Warnings and Precautions (5.13)]. Atomoxetine did not inhibit or induce the CYP2D6 pathway.

The major oxidative metabolite formed, regardless of CYP2D6 status, is 4-hydroxyAtomoxetine, which is glucuronidated. 4-HydroxyAtomoxetine is equipotent to Atomoxetine as an inhibitor of the norepinephrine transporter but circulates in plasma at much lower concentrations (1% of Atomoxetine concentration in EMs and 0.1% of Atomoxetine concentration in PMs). 4-HydroxyAtomoxetine is primarily formed by CYP2D6, but in PMs, 4-hydroxyAtomoxetine is formed at a slower rate by several other cytochrome P450 enzymes. N-DesmethylAtomoxetine is formed by CYP2C19 and other cytochrome P450 enzymes, but has substantially less pharmacological activity compared with Atomoxetine and circulates in plasma at lower concentrations (5% of Atomoxetine concentration in EMs and 45% of Atomoxetine concentration in PMs).

Mean apparent plasma clearance of Atomoxetine after oral administration in adult EMs is 0.35 L/hr/kg and the mean half-life is 5.2 hours. Following oral administration of Atomoxetine to PMs, mean apparent plasma clearance is 0.03 L/hr/kg and mean half-life is 21.6 hours. For PMs, AUC of Atomoxetine is approximately 10-fold and Css, max is about 5-fold greater than EMs. The elimination half-life of 4-hydroxyAtomoxetine is similar to that of N-desmethylAtomoxetine (6 to 8 hours) in EM subjects, while the half-life of N-desmethylAtomoxetine is much longer in PM subjects (34 to 40 hours).

Atomoxetine is excreted primarily as 4-hydroxyAtomoxetine-O-glucuronide, mainly in the urine (greater than 80% of the dose) and to a lesser extent in the feces (less than 17% of the dose). Only a small fraction of the Atomoxetine capsule dose is excreted as unchanged Atomoxetine (less than 3% of the dose), indicating extensive biotransformation.

[See Use In Specific Populations (8.4, 8.5, 8.6, 8.7, 8.8, 8.9)].

Nonclinical Toxicology

Carcinogenesis, Mutagenesis, Impairment of Fertility

Carcinogenesis — Atomoxetine HCl was not carcinogenic in rats and mice when given in the diet for 2 years at time-weighted average doses up to 47 and 458 mg/kg/day, respectively. The highest dose used in rats is approximately 8 and 5 times the maximum human dose in children and adults, respectively, on a mg/m2 basis. Plasma levels (AUC) of Atomoxetine at this dose in rats are estimated to be 1.8 times (extensive metabolizers) or 0.2 times (poor metabolizers) those in humans receiving the maximum human dose. The highest dose used in mice is approximately 39 and 26 times the maximum human dose in children and adults, respectively, on a mg/m2 basis.

Mutagenesis — Atomoxetine HCl was negative in a battery of genotoxicity studies that included a reverse point mutation assay (Ames Test), an in vitro mouse lymphoma assay, a chromosomal aberration test in Chinese hamster ovary cells, an unscheduled DNA synthesis test in rat hepatocytes, and an in vivo micronucleus test in mice. However, there was a slight increase in the percentage of Chinese hamster ovary cells with diplochromosomes, suggesting endoreduplication (numerical aberration).

The metabolite N-desmethylAtomoxetine HCl was negative in the Ames Test, mouse lymphoma assay, and unscheduled DNA synthesis test.

Impairment of fertility — Atomoxetine HCl did not impair fertility in rats when given in the diet at doses of up to 57 mg/kg/day, which is approximately 6 times the maximum human dose on a mg/m2 basis.

Clinical Studies

ADHD studies in Children and Adolescents

Acute Studies — The effectiveness of Atomoxetine capsules in the treatment of ADHD was established in 4 randomized, double-blind, placebo-controlled studies of pediatric patients (ages 6 to 18). Approximately one-third of the patients met DSM-IV criteria for inattentive subtype and two-thirds met criteria for both inattentive and hyperactive/impulsive subtypes.

Signs and symptoms of ADHD were evaluated by a comparison of mean change from baseline to endpoint for Atomoxetine capsule- and placebo-treated patients using an intent-to-treat analysis of the primary outcome measure, the investigator administered and scored ADHD Rating Scale-IV-Parent Version (ADHDRS) total score including hyperactive/impulsive and inattentive subscales. Each item on the ADHDRS maps directly to one symptom criterion for ADHD in the DSM-IV.

In Study 1, an 8-week randomized, double-blind, placebo-controlled, dose-response, acute treatment study of children and adolescents aged 8 to 18 (N=297), patients received either a fixed dose of Atomoxetine capsules (0.5, 1.2, or 1.8 mg/kg/day) or placebo. Atomoxetine capsules were administered as a divided dose in the early morning and late afternoon/early evening. At the 2 higher doses, improvements in ADHD symptoms were statistically significantly superior in Atomoxetine capsule-treated patients compared with placebo-treated patients as measured on the ADHDRS scale. The 1.8 mg/kg/day Atomoxetine capsule dose did not provide any additional benefit over that observed with the 1.2 mg/kg/day dose. The 0.5 mg/kg/day Atomoxetine capsule dose was not superior to placebo.

In Study 2, a 6-week randomized, double-blind, placebo-controlled, acute treatment study of children and adolescents aged 6 to 16 (N=171), patients received either Atomoxetine capsule or placebo. Atomoxetine capsules were administered as a single dose in the early morning and titrated on a weight-adjusted basis according to clinical response, up to a maximum dose of 1.5 mg/kg/day. The mean final dose of Atomoxetine capsules were approximately 1.3 mg/kg/day. ADHD symptoms were statistically significantly improved on Atomoxetine capsules compared with placebo, as measured on the ADHDRS scale. This study shows that Atomoxetine capsules are effective when administered once daily in the morning.

In 2 identical, 9-week, acute, randomized, double-blind, placebo-controlled studies of children aged 7 to 13 (Study 3, N=147; Study 4, N=144), Atomoxetine capsules and methylphenidate were compared with placebo. Atomoxetine capsules were administered as a divided dose in the early morning and late afternoon (after school) and titrated on a weight-adjusted basis according to clinical response. The maximum recommended Atomoxetine capsule dose was 2.0 mg/kg/day. The mean final dose of Atomoxetine capsules for both studies was approximately 1.6 mg/kg/day. In both studies, ADHD symptoms statistically significantly improved more on Atomoxetine capsules than on placebo, as measured on the ADHDRS scale.

Examination of population subsets based on gender and age (<12 and 12 to 17) did not reveal any differential responsiveness on the basis of these subgroupings. There was not sufficient exposure of ethnic groups other than Caucasian to allow exploration of differences in these subgroups.

Maintenance Study — The effectiveness of Atomoxetine capsules in the maintenance treatment of ADHD was established in an outpatient study of children and adolescents (ages 6-15 years). Patients meeting DSM-IV criteria for ADHD who showed continuous response for about 4 weeks during an initial 10 week open-label treatment phase with Atomoxetine capsules (1.2 to 1.8 mg/kg/day) were randomized to continuation of their current dose of Atomoxetine capsules (N=292) or to placebo (N=124) under double-blind treatment for observation of relapse. Response during the open-label phase was defined as CGI-ADHD-S score ≤2 and a reduction of at least 25% from baseline in ADHDRS-IV-Parent:Inv total score. Patients who were assigned to Atomoxetine capsules and showed continuous response for approximately 8 months during the first double-blind treatment phase were again randomized to continuation of their current dose of Atomoxetine capsules (N=81) or to placebo (N=82) under double-blind treatment for observation of relapse. Relapse during the double-blind phase was defined as CGI-ADHD-S score increases of at least 2 from the end of open-label phase and ADHDRS-IV-Parent:Inv total score returns to ≥90% of study entry score for 2 consecutive visits. In both double-blind phases, patients receiving continued Atomoxetine capsule treatment experienced significantly longer times to relapse than those receiving placebo.

ADHD studies in Adults

The effectiveness of Atomoxetine capsules in the treatment of ADHD was established in 2 randomized, double-blind, placebo-controlled clinical studies of adult patients, age 18 and older, who met DSM-IV criteria for ADHD.

Signs and symptoms of ADHD were evaluated using the investigator-administered Conners Adult ADHD Rating Scale Screening Version (CAARS), a 30-item scale. The primary effectiveness measure was the 18-item Total ADHD Symptom score (the sum of the inattentive and hyperactivity/impulsivity subscales from the CAARS) evaluated by a comparison of mean change from baseline to endpoint using an intent-to-treat analysis.

In 2 identical, 10-week, randomized, double-blind, placebo-controlled acute treatment studies (Study 5, N=280; Study 6, N=256), patients received either Atomoxetine capsules or placebo. Atomoxetine capsules were administered as a divided dose in the early morning and late afternoon/early evening and titrated according to clinical response in a range of 60 to 120 mg/day. The mean final dose of Atomoxetine capsules for both studies was approximately 95 mg/day. In both studies, ADHD symptoms were statistically significantly improved on Atomoxetine capsules, as measured on the ADHD Symptom score from the CAARS scale.

Examination of population subsets based on gender and age (<42 and ≥42) did not reveal any differential responsiveness on the basis of these subgroupings. There was not sufficient exposure of ethnic groups other than Caucasian to allow exploration of differences in these subgroups.

How Supplied/Storage and Handling

How Supplied

a Atomoxetine base equivalent.

Atomoxetine Capsules 10 mga 18 mga 25 mga 40 mga 60 mga 80 mga 100 mga
Color Opaque White,
Opaque White
Gold,
Opaque White
Opaque Blue,
Opaque White
Opaque Blue,
Opaque Blue
Opaque Blue,
Gold
Opaque Brown,
Opaque White
Opaque Brown,
Opaque Brown
Identification LILLY 3227 LILLY 3238 LILLY 3228 LILLY 3229 LILLY 3239 LILLY 3250 LILLY 3251
10 mg 18 mg 25 mg 40 mg 60 mg 80 mg 100 mg
NDC Codes:
Bottles of 30 66993-040-30 66993-041-30 66993-042-30 66993-043-30 66993-044-30 66993-045-30 66993-046-30

Storage and Handling

Store at 25°C (77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].

Patient Counseling Information

See FDA-approved Medication Guide.

General Information

Physicians should instruct their patients to read the Medication Guide before starting therapy with Atomoxetine capsules and to reread it each time the prescription is renewed.

Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with Atomoxetine capsules and should counsel them in its appropriate use. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have.

Patients should be advised of the following issues and asked to alert their prescriber if these occur while taking Atomoxetine capsules.

Suicide Risk

Patients, their families, and their caregivers should be encouraged to be alert to the emergence of anxiety, agitation, panic attacks, insomnia, irritability, hostility, aggressiveness, impulsivity, akathisia (psychomotor restlessness), hypomania, mania, other unusual changes in behavior, depression, and suicidal ideation, especially early during Atomoxetine capsule treatment and when the dose is adjusted. Families and caregivers of patients should be advised to observe for the emergence of such symptoms on a day-to-day basis, since changes may be abrupt. Such symptoms should be reported to the patient's prescriber or health professional, especially if they are severe, abrupt in onset, or were not part of the patient's presenting symptoms. Symptoms such as these may be associated with an increased risk for suicidal thinking and behavior and indicate a need for very close monitoring and possibly changes in the medication.

Severe Liver Injury

Patients initiating Atomoxetine capsules should be cautioned that severe liver injury may develop. Patients should be instructed to contact their physician immediately should they develop pruritus, dark urine, jaundice, right upper quadrant tenderness, or unexplained “flu-like” symptoms [see Warnings and Precautions (5.2)].

Aggression or Hostility

Patients should be instructed to call their doctor as soon as possible should they notice an increase in aggression or hostility.

Priapism

Rare postmarketing cases of priapism, defined as painful and nonpainful penile erection lasting more than 4 hours, have been reported for pediatric and adult patients treated with Atomoxetine capsules. The parents or guardians of pediatric patients taking Atomoxetine capsules and adult patients taking Atomoxetine capsules should be instructed that priapism requires prompt medical attention.

Ocular Irritant

Atomoxetine capsules are an ocular irritant. Atomoxetine capsules are not intended to be opened. In the event of capsule content coming in contact with the eye, the affected eye should be flushed immediately with water, and medical advice obtained. Hands and any potentially contaminated surfaces should be washed as soon as possible.

Drug-Drug Interaction

Patients should be instructed to consult a physician if they are taking or plan to take any prescription or over-the-counter medicines, dietary supplements, or herbal remedies.

Pregnancy

Patients should be instructed to consult a physician if they are nursing, pregnant, or thinking of becoming pregnant while taking Atomoxetine capsules.

Food

Patients may take Atomoxetine capsules with or without food.

Missed Dose

If patients miss a dose, they should be instructed to take it as soon as possible, but should not take more than the prescribed total daily amount of Atomoxetine capsules in any 24-hour period.

Interference with Psychomotor Performance

Patients should be instructed to use caution when driving a car or operating hazardous machinery until they are reasonably certain that their performance is not affected by Atomoxetine.

Literature revised June 8, 2017

Manufactured for: Prasco Laboratories, Mason, OH 45040, USA

Manufactured by: Eli Lilly and Company, Indianapolis, IN 46285, USA

Copyright © 2002, 2017, Eli Lilly and Company. All rights reserved.

ATX-0002-USPI-20170608

MEDICATION GUIDE
Atomoxetine (a-to-MOX-e-tine)
Capsules

Read the Medication Guide that comes with Atomoxetine capsules before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your treatment or your child's treatment with Atomoxetine capsules.

What is the most important information I should know about Atomoxetine capsules?

The following have been reported with use of Atomoxetine capsules:

1. Suicidal thoughts and actions in children and teenagers:

Children and teenagers sometimes think about suicide, and many report trying to kill themselves. Results from Atomoxetine clinical studies with over 2200 child or teenage ADHD patients suggest that some children and teenagers may have a higher chance of having suicidal thoughts or actions. Although no suicides occurred in these studies, 4 out of every 1000 patients developed suicidal thoughts. Tell your child or teenager's doctor if your child or teenager (or there is a family history of):

  • has bipolar illness (manic-depressive illness)
  • had suicide thoughts or actions before starting Atomoxetine capsules

The chance for suicidal thoughts and actions may be higher:

  • early during Atomoxetine capsule treatment
  • during dose adjustments

Prevent suicidal thoughts and action in your child or teenager by:

  • paying close attention to your child or teenager's moods, behaviors, thoughts, and feelings during Atomoxetine capsule treatment
  • keeping all follow-up visits with your child or teenager's doctor as scheduled

Watch for the following signs in your child or teenager during Atomoxetine capsule treatment:

  • anxiety
  • agitation
  • panic attacks
  • trouble sleeping
  • irritability
  • hostility
  • aggressiveness
  • impulsivity
  • restlessness
  • mania
  • depression
  • suicide thoughts

Call your child or teenager's doctor right away if they have any of the above signs, especially if they are new, sudden, or severe. Your child or teenager may need to be closely watched for suicidal thoughts and actions or need a change in medicine.

2. Severe liver damage:

Atomoxetine capsules can cause liver injury in some patients. Call your doctor right away if you or your child has the following signs of liver problems:

  • itching
  • right upper belly pain
  • dark urine
  • yellow skin or eyes
  • unexplained flu-like symptoms

3. Heart-related problems:

  • sudden death in patients who have heart problems or heart defects
  • stroke and heart attack in adults
  • increased blood pressure and heart rate

Tell your doctor if you or your child has any heart problems, heart defects, high blood pressure, or a family history of these problems. Your doctor should check you or your child carefully for heart problems before starting Atomoxetine capsules.

Your doctor should check your blood pressure or your child's blood pressure and heart rate regularly during treatment with Atomoxetine capsules.

Call your doctor right away if you or your child has any signs of heart problems such as chest pain, shortness of breath, or fainting while taking Atomoxetine capsules.

4. New mental (psychiatric) problems in children and teenagers:

  • new psychotic symptoms (such as hearing voices, believing things that are not true, being suspicious) or new manic symptoms

Call your child or teenager's doctor right away about any new mental symptoms because adjusting or stopping Atomoxetine capsule treatment may need to be considered.

What Is Atomoxetine?

Atomoxetine is a selective norepinephrine reuptake inhibitor medicine. It is used for the treatment of attention deficit and hyperactivity disorder (ADHD). Atomoxetine may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD.

Atomoxetine capsules should be used as a part of a total treatment program for ADHD that may include counseling or other therapies.

Atomoxetine capsules have not been studied in children less than 6 years old.

Who should not take Atomoxetine capsules?

Atomoxetine capsules should not be taken if you or your child:

  • are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI. Some names of MAOI medicines are Nardil® (phenelzine sulfate), Parnate® (tranylcypromine sulfate) and Emsam® (selegiline transdermal system).
  • have an eye problem called narrow angle glaucoma
  • are allergic to anything in Atomoxetine capsules. See the end of this Medication Guide for a complete list of ingredients.
  • have or have had a rare tumor called pheochromocytoma.

Atomoxetine capsules may not be right for you or your child. Before starting Atomoxetine capsules tell your doctor or your child's doctor about all health conditions (or a family history of) including:

  • have or had suicide thoughts or actions
  • heart problems, heart defects, irregular heart beat, high blood pressure, or low blood pressure
  • mental problems, psychosis, mania, bipolar illness, or depression
  • liver problems

Tell your doctor if you or your child is pregnant, planning to become pregnant, or breastfeeding.

Can Atomoxetine capsules be taken with other medicines?

Tell your doctor about all the medicines that you or your child takes including prescription and nonprescription medicines, vitamins, and herbal supplements. Atomoxetine and some medicines may interact with each other and cause serious side effects. Your doctor will decide whether Atomoxetine capsules can be taken with other medicines.

Especially tell your doctor if you or your child takes:

  • asthma medicines
  • anti-depression medicines including MAOIs
  • blood pressure medicines
  • cold or allergy medicines that contain decongestants

Know the medicines that you or your child takes. Keep a list of your medicines with you to show your doctor and pharmacist.

Do not start any new medicine while taking Atomoxetine capsules without talking to your doctor first.

How should Atomoxetine capsules be taken?

  • Take Atomoxetine capsules exactly as prescribed. Atomoxetine capsules come in different dose strengths. Your doctor may adjust the dose until it is right for you or your child.
  • Do not chew, crush, or open the capsules. Swallow Atomoxetine capsules whole with water or other liquids. Tell your doctor if you or your child cannot swallow Atomoxetine capsules whole. A different medicine may need to be prescribed.
  • Avoid touching a broken Atomoxetine capsule. Wash hands and surfaces that touched an open Atomoxetine capsule. If any of the powder gets in your eyes or your child's eyes, rinse them with water right away and call your doctor.
  • Atomoxetine capsules can be taken with or without food.
  • Atomoxetine capsules are usually taken once or twice a day. Take Atomoxetine at the same time each day to help you remember. If you miss a dose of Atomoxetine, take it as soon as you remember that day. If you miss a day of Atomoxetine, do not double your dose the next day. Just skip the day you missed.
  • From time to time, your doctor may stop Atomoxetine capsule treatment for a while to check ADHD symptoms.
  • Your doctor may do regular checks of the blood, heart, and blood pressure while taking Atomoxetine capsules. Children should have their height and weight checked often while taking Atomoxetine capsules. Atomoxetine capsule treatment may be stopped if a problem is found during these check-ups.
  • If you or your child takes too much Atomoxetine or overdoses, call your doctor or poison control center right away, or get emergency treatment.

What are possible side effects of Atomoxetine capsules?

See What is the most important information I should know about Atomoxetine capsules? for information on reported suicidal thoughts and actions, other mental problems, severe liver damage, and heart problems.

Other serious side effects include:

  • serious allergic reactions (call your doctor if you have trouble breathing, see swelling or hives, or experience other allergic reactions)
  • slowing of growth (height and weight) in children
  • problems passing urine including
    • trouble starting or keeping a urine stream
    • cannot fully empty the bladder

Common side effects in children and teenagers include:

  • upset stomach
  • decreased appetite
  • nausea or vomiting
  • dizziness
  • tiredness
  • mood swings

Common side effects in adults include:

  • constipation
  • dry mouth
  • nausea
  • decreased appetite
  • dizziness
  • sexual side effects
  • problems passing urine

Other information for children, teenagers, and adults:

  • Erections that won't go away (priapism) have occurred rarely during treatment with Atomoxetine. If you have an erection that lasts more than 4 hours, seek medical help right away. Because of the potential for lasting damage, including the potential inability to have erections, priapism should be evaluated by a doctor immediately.
  • Atomoxetine capsules may affect your ability or your child's ability to drive or operate heavy machinery. Be careful until you know how Atomoxetine affects you or your child.
  • Talk to your doctor if you or your child has side effects that are bothersome or do not go away.

This is not a complete list of possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store Atomoxetine capsules?

  • Store Atomoxetine in a safe place at room temperature, 59 to 86°F (15 to 30°C).
  • Keep Atomoxetine capsules and all medicines out of the reach of children.

General information about Atomoxetine

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use Atomoxetine for a condition for which it was not prescribed. Do not give Atomoxetine to other people, even if they have the same condition. It may harm them.

This Medication Guide summarizes the most important information about Atomoxetine. If you would like more information, talk with your doctor. You can ask your doctor or pharmacist for information about Atomoxetine that was written for healthcare professionals. For more information about Atomoxetine call 1-800-545-5979.

What are the ingredients in Atomoxetine capsules?

Active ingredient: Atomoxetine hydrochloride.

Inactive ingredients: pregelatinized starch, dimethicone, gelatin, sodium lauryl sulfate, FD&C Blue No. 2, synthetic yellow iron oxide, titanium dioxide, red iron oxide, and edible black ink.

Nardil® is a registered trademark of Pfizer Inc.

Parnate® is a registered trademark of GlaxoSmithKline.

Emsam® is a registered trademark of Somerset Pharmaceuticals Inc.

This Medication Guide has been approved by the US Food and Drug Administration.

Patient Information issued February 1, 2017

Manufactured for: Prasco Laboratories, Mason, OH 45040, USA

Manufactured by: Eli Lilly and Company, Indianapolis, IN 46285, USA

Copyright © 2003, 2014, Eli Lilly and Company. All rights reserved.

ATX-0001-MG-20170201

PACKAGE LABEL - Atomoxetine 10 mg bottle of 30

NDC 66993-040-30

PRASCO

Atomoxetine Capsules

Each capsule equivalent to 10 mg Atomoxetine

10 mg

30 Capsules

Rx only

PACKAGE LABEL - Atomoxetine 18 mg bottle of 30

NDC 66993-041-30

PRASCO

Atomoxetine Capsules

Each capsule equivalent to 18 mg Atomoxetine

18 mg

30 Capsules

Rx only

PACKAGE LABEL - Atomoxetine 25 mg bottle of 30

NDC 66993-042-30

PRASCO

Atomoxetine Capsules

Each capsule equivalent to 25 mg Atomoxetine

25 mg

30 Capsules

Rx only

PACKAGE LABEL - Atomoxetine 40 mg bottle of 30

NDC 66993-043-30

PRASCO

Atomoxetine Capsules

Each capsule equivalent to 40 mg Atomoxetine

40 mg

30 Capsules

Rx only

PACKAGE LABEL - Atomoxetine 60 mg bottle of 30

NDC 66993-044-30

PRASCO

Atomoxetine Capsules

Each capsule equivalent to 60 mg Atomoxetine

60 mg

30 Capsules

Rx only

PACKAGE LABEL - Atomoxetine 80 mg bottle of 30

NDC 66993-045-30

PRASCO

Atomoxetine Capsules

Each capsule equivalent to 80 mg Atomoxetine

80 mg

30 Capsules

Rx only

PACKAGE LABEL - Atomoxetine 100 mg bottle of 30

NDC 66993-046-30

PRASCO

Atomoxetine Capsules

Each capsule equivalent to 100 mg Atomoxetine

100 mg

30 Capsules

Rx only

Atomoxetine 
Atomoxetine hydrochloride capsule
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:66993-040
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Atomoxetine hydrochloride (Atomoxetine) Atomoxetine 10 mg
Inactive Ingredients
Ingredient Name Strength
STARCH, Corn  
DIMETHICONE  
Gelatin  
sodium lauryl sulfate  
titanium dioxide  
Product Characteristics
Color white (opaque white) Score no score
Shape CAPSULE Size 16mm
Flavor Imprint Code LILLY;3227;10;mg
Contains     
Packaging
# Item Code Package Description
1 NDC:66993-040-30 30 CAPSULE in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA authorized generic NDA021411 05/30/2017
Atomoxetine 
Atomoxetine hydrochloride capsule
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:66993-041
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Atomoxetine hydrochloride (Atomoxetine) Atomoxetine 18 mg
Inactive Ingredients
Ingredient Name Strength
STARCH, Corn  
DIMETHICONE  
Gelatin  
sodium lauryl sulfate  
FERRIC OXIDE YELLOW  
titanium dioxide  
Product Characteristics
Color white (opaque white) , yellow (gold) Score no score
Shape CAPSULE Size 16mm
Flavor Imprint Code LILLY;3238;18;mg
Contains     
Packaging
# Item Code Package Description
1 NDC:66993-041-30 30 CAPSULE in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA authorized generic NDA021411 05/30/2017
Atomoxetine 
Atomoxetine hydrochloride capsule
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:66993-042
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Atomoxetine hydrochloride (Atomoxetine) Atomoxetine 25 mg
Inactive Ingredients
Ingredient Name Strength
STARCH, Corn  
DIMETHICONE  
Gelatin  
sodium lauryl sulfate  
FD&C BLUE NO. 2  
FERROSOFERRIC OXIDE  
titanium dioxide  
Product Characteristics
Color white (opaque white) , blue (opaque blue) Score no score
Shape CAPSULE Size 16mm
Flavor Imprint Code LILLY;3228;25;mg
Contains     
Packaging
# Item Code Package Description
1 NDC:66993-042-30 30 CAPSULE in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA authorized generic NDA021411 05/30/2017
Atomoxetine 
Atomoxetine hydrochloride capsule
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:66993-043
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Atomoxetine hydrochloride (Atomoxetine) Atomoxetine 40 mg
Inactive Ingredients
Ingredient Name Strength
STARCH, Corn  
DIMETHICONE  
Gelatin  
sodium lauryl sulfate  
FD&C BLUE NO. 2  
FERROSOFERRIC OXIDE  
titanium dioxide  
Product Characteristics
Color blue (opaque blue) Score no score
Shape CAPSULE Size 16mm
Flavor Imprint Code LILLY;3229;40;mg
Contains     
Packaging
# Item Code Package Description
1 NDC:66993-043-30 30 CAPSULE in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA authorized generic NDA021411 05/30/2017
Atomoxetine 
Atomoxetine hydrochloride capsule
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:66993-044
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Atomoxetine hydrochloride (Atomoxetine) Atomoxetine 60 mg
Inactive Ingredients
Ingredient Name Strength
STARCH, Corn  
DIMETHICONE  
Gelatin  
sodium lauryl sulfate  
FD&C BLUE NO. 2  
FERRIC OXIDE YELLOW  
FERROSOFERRIC OXIDE  
titanium dioxide  
Product Characteristics
Color blue (opaque blue) , yellow (gold) Score no score
Shape CAPSULE Size 18mm
Flavor Imprint Code LILLY;3239;60;mg
Contains     
Packaging
# Item Code Package Description
1 NDC:66993-044-30 30 CAPSULE in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA authorized generic NDA021411 05/30/2017
Atomoxetine 
Atomoxetine hydrochloride capsule
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:66993-045
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Atomoxetine hydrochloride (Atomoxetine) Atomoxetine 80 mg
Inactive Ingredients
Ingredient Name Strength
STARCH, Corn  
DIMETHICONE  
Gelatin  
sodium lauryl sulfate  
FERRIC OXIDE YELLOW  
FERRIC OXIDE RED  
titanium dioxide  
Product Characteristics
Color white (opaque white) , brown (opaque brown) Score no score
Shape CAPSULE Size 18mm
Flavor Imprint Code LILLY;3250;80;mg
Contains     
Packaging
# Item Code Package Description
1 NDC:66993-045-30 30 CAPSULE in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA authorized generic NDA021411 05/30/2017
Atomoxetine 
Atomoxetine hydrochloride capsule
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:66993-046
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Atomoxetine hydrochloride (Atomoxetine) Atomoxetine 100 mg
Inactive Ingredients
Ingredient Name Strength
STARCH, Corn  
DIMETHICONE  
Gelatin  
sodium lauryl sulfate  
FERRIC OXIDE YELLOW  
FERRIC OXIDE RED  
titanium dioxide  
Product Characteristics
Color brown (opaque brown) Score no score
Shape CAPSULE Size 20mm
Flavor Imprint Code LILLY;3251;100;mg
Contains     
Packaging
# Item Code Package Description
1 NDC:66993-046-30 30 CAPSULE in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA authorized generic NDA021411 05/30/2017
Labeler - Prasco Laboratories (065969375)
Revised: 06/2017
 
Prasco Laboratories
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