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Fluoxetine / olanzapine Disease Interactions

There are 38 disease interactions with fluoxetine / olanzapine:

Major

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Acute Alcohol Intoxication

Severe Potential Hazard, High plausibility

Applies to: Alcoholism

The use of neuroleptic agents is contraindicated in patients with acute alcohol intoxication exhibiting depressed vital signs. The central nervous system depressant effects of neuroleptic agents may be additive with those of alcohol. Severe respiratory depression and respiratory arrest may occur. Therapy with neuroleptic agents should be administered cautiously in patients who might be prone to acute alcohol intake.

References

  1. "Product Information. Geodon (ziprasidone)." Pfizer US Pharmaceuticals, New York, NY.
  2. "Product Information. Orap Tablets (pimozide)." Gate Pharmaceuticals, Sellersville, PA.
  3. "Product Information. Zyprexa (olanzapine)." Lilly, Eli and Company, Indianapolis, IN.
View all 10 references
Major

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Cardiovascular Disease

Severe Potential Hazard, Moderate plausibility

Applies to: Cerebrovascular Insufficiency, History - Cerebrovascular Disease, History - Myocardial Infarction, Hypotension, Heart Disease

Neuroleptic agents may cause hypotension (including orthostatic hypotension), reflex tachycardia, increased pulse rate, syncope and dizziness, particularly during initiation of therapy or rapid escalation of dosage. Tolerance to the hypotensive effects often develops after a few doses to a few weeks. Rarely, fatal cardiac arrest has occurred secondary to severe hypotension. Other reported adverse cardiovascular effects include hypertension, edema, arrhythmias, thrombophlebitis, myocarditis, angina, myocardial infarction, congestive heart failure, and ECG abnormalities such as PR and QT interval prolongation, diffuse T-wave flattening, and ST segment depression. Therapy with neuroleptic agents should be administered cautiously in patients with severe cardiovascular disease, pheochromocytoma, a predisposition to hypotension, or conditions that could be exacerbated by hypotension such as a history of myocardial infarction, angina, or ischemic stroke. Close monitoring of cardiovascular status, including ECG changes, is recommended at all dosages. If parenteral therapy is given, patients should be in a supine position during administration and for at least 30 to 60 minutes afterwards. Patients who experience orthostatic hypotension should be cautioned not to rise too abruptly. Occasionally, when severe, hypotension may require treatment with vasoconstrictive agents such as norepinephrine or phenylephrine. Epinephrine should not be used, however, since neuroleptic agents can reverse its vasopressor effects and cause a further lowering of blood pressure.

References

  1. "Product Information. Risperdal (risperidone)." Janssen Pharmaceutica, Titusville, NJ.
  2. Centorrino F, Baldessarini RJ, Kando JC, Frankenburg FR, Volpicelli SA, Flood JG "Clozapine and metabolites - concentrations in serum and clinical findings during treatment of chronically psychotic patients." J Clin Psychopharmacol 14 (1994): 119-25
  3. Tueth M "Side effects of clozipine (Clozaril) requiring emergency treatment." Am J Emerg Med 11 (1993): 312-3
View all 28 references
Major

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Cns Depression

Severe Potential Hazard, High plausibility

Applies to: Altered Consciousness, Respiratory Arrest

The use of neuroleptic agents is contraindicated in comatose patients and patients with severe central nervous system depression. Neuroleptic agents may potentiate the CNS and respiratory depression in these patients.

References

  1. "Product Information. Haldol (haloperidol)." McNeil Pharmaceutical, Raritan, NJ.
  2. "Product Information. Navane (thiothixene)." Roerig Division, New York, NY.
  3. "Product Information. Moban (molindone)." Gate Pharmaceuticals, Sellersville, PA.
View all 7 references
Major

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Nms

Severe Potential Hazard, High plausibility

Applies to: Neuroleptic Malignant Syndrome

The central dopaminergic blocking effects of neuroleptic agents may precipitate or aggravate a potentially fatal symptom complex known as neuroleptic malignant syndrome (NMS). NMS is observed most frequently when high-potency agents like haloperidol are administered intramuscularly, but may occur with any neuroleptic agent given for any length of time. Clinical manifestations of NMS include hyperpyrexia, muscle rigidity, altered mental status and autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis and cardiac arrhythmias). Additional signs may include elevated creatine phosphokinase, myoglobinuria, and acute renal failure. Neuroleptic agents should not be given to patients with active NMS and should be immediately discontinued if currently being administered in such patients. In patients with a history of NMS, introduction or reintroduction of neuroleptic agents should be carefully considered, since NMS may recur.

References

  1. Anderson ES, Powers PS "Neuroleptic malignant syndrome associated with clozapine use." J Clin Psychiatry 52 (1991): 102-4
  2. "Product Information. Haldol (haloperidol)." McNeil Pharmaceutical, Raritan, NJ.
  3. Sharma R, Trappler B, Ng YK, Leeman CP "Risperidone-induced neutroleptic malignant syndrome." Ann Pharmacother 30 (1996): 775-8
View all 40 references
Major

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Tardive Dyskinesia

Severe Potential Hazard, Moderate plausibility

Applies to: Tardive Dyskinesia

Neuroleptic agents may precipitate symptoms of tardive dyskinesia (TD), a syndrome consisting of rhythmic involuntary movements variously involving the tongue, face, mouth, lips, jaw, and/or trunk and extremities, following chronic use of at least several months but often years. Elderly patients, particularly women, are most susceptible. Both the risk of developing the syndrome and the likelihood that it will become irreversible increase with the duration and total cumulative dose of neuroleptic therapy administered. However, patients may infrequently develop symptoms after relatively brief treatment periods at low dosages. If TD occurs during neuroleptic therapy, prompt withdrawal of the offending agent or at least a lowering of the dosage should be considered. TD symptoms may become more severe after drug discontinuation or a dosage reduction, but may gradually improve over months to years. In patients with preexisting drug-induced TD, initiating or increasing the dosage of neuroleptic therapy may temporarily mask the symptoms of TD but could eventually worsen the condition. The newer, atypical neuroleptic agents (e.g., risperidone, quetiapine, olanzapine) tend to be associated with a substantially reduced risk of inducing TD and are considered the drugs of choice in patients being treated for psychosis.

References

  1. "Product Information. Risperdal (risperidone)." Janssen Pharmaceutica, Titusville, NJ.
  2. Pinder RM, Brogden RN, Swayer R, Speight TM, Spencer R, Avery GS "Pimozide: a review of its pharmacological properties and therapeutic uses in psychiatry." Drugs 12 (1976): 1-40
  3. Ghelber D, Belmaker RH "Tardive dyskinesia with quetiapine." Am J Psychiat 156 (1999): 796-7
View all 42 references
Major

Ssri Antidepressants (Includes Fluoxetine/olanzapine) ↔ Depression

Severe Potential Hazard, Moderate plausibility

Applies to: Bipolar Disorder, Depression, Psychosis

Adult and pediatric patients with depression and other psychiatric disorders may experience worsening of their symptoms and may have the emergence of suicidal thoughts and behavior. Patients should be monitored appropriately and observed closely for worsening of their symptoms, suicidality or changes in their behavior, especially during the first few months of treatment, and at times of dose changes. Families and caregivers should be advised of the need for close observation and communication with the treating physician. Discontinuing the medication should be considered if symptoms are persistently worse, or abrupt in onset. It may be prudent to refrain from dispensing large quantities of medication to these patients.

Moderate

Antidepressant/Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Depression

Moderate Potential Hazard, Moderate plausibility

Applies to: Depression, Bipolar Disorder

Adult and pediatric patients with depression and other psychiatric disorders may experience worsening of their symptoms and may have the emergence of suicidal thoughts and behavior. Patients should be monitored appropriately and observed closely for worsening of their symptoms, suicidality or changes in their behavior, especially during the first few months of treatment, and at times of dose changes. Discontinuing the medication should be considered if symptoms are persistently worse, or abrupt in onset.

Moderate

Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Aspiration

Moderate Potential Hazard, Moderate plausibility

Applies to: Dysphagia

Esophageal dysmotility and aspiration have been associated with the use of antipsychotic drugs. These drugs should be administered cautiously in patients at risk for aspiration pneumonia.

Moderate

Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Neuroleptic Malignant Syndrome

Moderate Potential Hazard, Moderate plausibility

Applies to: Neuroleptic Malignant Syndrome

Antipsychotic agents may precipitate or aggravate a potentially fatal symptom complex known as Neuroleptic Malignant Syndrome (NMS). NMS is observed most frequently when high-potency neuroleptic agents like haloperidol or fluphenazine are administered intramuscularly but may occur with any agent possessing neuroleptic activity given for any length of time. Clinical manifestations of NMS include hyperpyrexia, muscle rigidity, altered mental status and autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis and cardiac arrhythmias). Antipsychotic therapy should not be initiated in patients with active NMS and should be immediately discontinued if currently being administered in such patients. In patients with a history of NMS, introduction or reintroduction of antipsychotic should be carefully considered, since NMS may recur.

Moderate

Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Psychosis

Moderate Potential Hazard, Moderate plausibility

Applies to: Psychosis

Antipsychotic drugs are not approved for the treatment of patients with dementia-related psychosis as they may increase the risk of mortality in elderly patients with this condition. If used, caution is recommended. Additionally, these patients should be assesses for the emergence of difficulty swallowing or excessive somnolence, which could predispose to accidental injury or aspiration.

Moderate

Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Seizure

Moderate Potential Hazard, Moderate plausibility

Applies to: Alcoholism, Seizures, Head Injury

Antipsychotic drugs can lower the seizure threshold and trigger seizures in a dose-dependent manner. This risk is greatest in patients with a history of seizures or with conditions that lower the seizure threshold. Therapy with Antipsychotic drugs should be administered cautiously in patients with a history of seizures or other predisposing factors, such as head trauma, CNS abnormalities, and alcoholism.

Moderate

Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Tardive Dyskinesia

Moderate Potential Hazard, Moderate plausibility

Applies to: Tardive Dyskinesia

Tardive dyskinesia (TD) may develop in patients treated with antipsychotic drugs. Both the risk of developing TD and the likelihood that it will become irreversible increase with the duration and total cumulative dose of antipsychotic therapy administered. However, patients may infrequently develop symptoms after relatively brief treatment periods at low dosages or even after discontinuation of treatment. Antipsychotic treatment may suppress (or partially suppress) the signs and symptoms of the syndrome and may mask the underlying process. If signs and symptoms of tardive dyskinesia appear in a patient on antipsychotics, drug discontinuation should be considered.

Moderate

Atypical Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Cerebrovascular

Moderate Potential Hazard, Moderate plausibility

Applies to: Cerebral Vascular Disorder

In controlled trials, some atypical antipsychotic drugs had an increased risk of cerebrovascular adverse events (e.g., stroke, transient ischemic attack), including fatalities, in elderly patients with dementia-related psychosis. These agents are not approved for the treatment of patients with dementia-related psychosis.

Moderate

Atypical Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Hematologic Abnormalities

Moderate Potential Hazard, Moderate plausibility

Applies to: Bone Marrow Depression/Low Blood Counts

Reports of leukopenia, neutropenia, and agranulocytosis has been noted with the use of atypical antipsychotic agents. White blood cell counts returned to normal with discontinuation of therapy. Therapy with these agents should be administered cautiously in patients with a history of or predisposition to decreased white blood cell or neutrophil counts. Clinical monitoring of hematopoietic function is recommended.

Moderate

Atypical Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Hyperglycemia/Diabetes

Moderate Potential Hazard, Moderate plausibility

Applies to: Diabetes Mellitus

Hyperglycemia, in some cases extreme and associated with ketoacidosis or hyperosmolar coma or death, has been reported with the use of atypical antipsychotic agents. Patients with diabetes should be monitored for worsening control of blood glucose when treated with these agents. It is recommended that patients with risk factors for diabetes mellitus starting treatment with atypical antipsychotics should undergo fasting blood glucose testing at the beginning of treatment, and periodically thereafter. Any patient treated with atypical antipsychotics should be monitored for symptoms of hyperglycemia including polydipsia, polyuria, polyphagia, and weakness. Patients who develop symptoms of hyperglycemia during treatment with atypical antipsychotics should undergo fasting blood glucose testing. In some cases, hyperglycemia has resolved when treatment with these agents was discontinued; however, some patients required continuation of anti-diabetic treatment despite discontinuation of the atypical antipsychotic drug.

Moderate

Atypical Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Hyperprolactinemia

Moderate Potential Hazard, Moderate plausibility

Applies to: Osteoporosis, Hyperprolactinemia

Atypical antipsychotic agents with dopamine D2 blocking effects may elevate prolactin levels and the elevation may persists during chronic administration. Hyperprolactinemia may suppress hypothalamic gonadotrophin releasing hormone (GnRH), resulting in reduced pituitary gonadotropin secretion. This, in turn, may inhibit reproductive function by impairing gonadal steroidogenesis in both female and male patients. Galactorrhea, amenorrhea, gynecomastia, and impotence have been reported in patients receiving prolactin-elevating compounds; however, the clinical significance of elevated serum prolactin levels is unknown for most patients. Long-standing hyperprolactinemia when associated with hypogonadism may lead to decreased bone density in both female and male patients.

Moderate

Atypical Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Hypotension

Moderate Potential Hazard, Moderate plausibility

Applies to: Hypotension, Dehydration, Diarrhea, Vomiting, Syncope, Ischemic Heart Disease

The use of atypical antipsychotic agents has been associated with orthostatic hypotension and syncope. Therapy with atypical antipsychotics should be administered cautiously in patients with hypotension or conditions that could be exacerbated by hypotension, such as a history of myocardial infarction, angina, or ischemic stroke. Patients with dehydration (e.g., due to severe diarrhea or vomiting) may be predisposed to hypotension and should also be managed carefully during therapy with atypical antipsychotics. Blood pressure should be monitored at regular intervals, particularly during dosage escalation or whenever dosage has been altered, and patients should be advised not to rise abruptly from a sitting or recumbent position.

Moderate

Atypical Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Lipid Alterations

Moderate Potential Hazard, Moderate plausibility

Applies to: Hyperlipidemia

Atypical antipsychotic drugs have been associated with undesirable alteration in lipid levels. While all agents in the class have been shown to produce some changes, each drug has its own specific risk profile. Before or soon after initiation of antipsychotic medication, obtain a fasting lipid profile at baseline and monitor periodically during treatment.

Moderate

Atypical Antipsychotic Agents (Includes Fluoxetine/olanzapine) ↔ Weight Gain

Moderate Potential Hazard, Moderate plausibility

Applies to: Obesity

Weight gain has been observed with atypical antipsychotic use. When treating pediatric patients with these agents, weight gain should be monitored and assessed against that expected for normal growth. Monitor weight at baseline and frequently thereafter. While all agents in the class have been shown to produce some changes, each drug has its own specific risk profile.

Moderate

Fluoxetine (Includes Fluoxetine/olanzapine) ↔ Diabetes

Moderate Potential Hazard, Moderate plausibility

Applies to: Diabetes Mellitus

Fluoxetine may alter blood glucose control in patients with diabetes. Hypoglycemia may occur during therapy with fluoxetine, and hyperglycemia may occur following discontinuation of the drug. Dosage adjustments in insulin and/or oral hypoglycemic medications may be necessary in patients with diabetes whenever fluoxetine therapy is initiated or discontinued.

References

  1. "Product Information. Prozac (fluoxetine)." Dista Products Company, Indianapolis, IN.
Moderate

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Anticholinergic Effects

Moderate Potential Hazard, High plausibility

Applies to: Gastrointestinal Obstruction, Glaucoma/Intraocular Hypertension, Urinary Retention

Most neuroleptic agents have anticholinergic activity, to which elderly patients are particularly sensitive. Clozapine and low-potency agents such as chlorpromazine and thioridazine tend to exhibit the greatest degree of anticholinergic effects in the class, while haloperidol as well as the newer, atypical agents like quetiapine, risperidone and ziprasidone have generally been associated with very low frequencies of anticholinergic adverse effects. Therapy with neuroleptic agents should be administered cautiously in patients with preexisting conditions that are likely to be exacerbated by anticholinergic activity, such as urinary retention or obstruction; angle-closure glaucoma, untreated intraocular hypertension, or uncontrolled primary open-angle glaucoma; and gastrointestinal obstructive disorders.

References

  1. Frankenburg FR, Kando JC, Centorrino F, Gilbert JM "Bladder dysfunction associated with clozapine therapy." J Clin Psychiatry 57 (1996): 39-40
  2. "Product Information. Navane (thiothixene)." Roerig Division, New York, NY.
  3. Cohen MAA, Alfonso CA, Mosquera M "Development of urinary retention during treatment with clozapine and meclizine." Am J Psychiatry 151 (1994): 619-20
View all 14 references
Moderate

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Breast Cancer

Moderate Potential Hazard, Moderate plausibility

Applies to: Breast Cancer

The chronic use of neuroleptic agents can cause persistent elevations in prolactin levels. Based on in vitro data, approximately one-third of human breast cancers are thought to be prolactin-dependent. The clinical significance of this observation with respect to long-term neuroleptic therapy is unknown. Chronic administration of neuroleptic drugs has been associated with mammary tumorigenesis in rodent studies but not in human clinical or epidemiologic studies. Until further data are available, therapy with neuroleptic agents should be administered cautiously in patients with a previously detected breast cancer.

References

  1. "Product Information. Moban (molindone)." Gate Pharmaceuticals, Sellersville, PA.
  2. Dickson RA, Dalby JT, Williams R, Edwards AL "Risperidone-induced prolactin elevations in premenopausal women with schizophrenia." Am J Psychiatry 152 (1995): 1102-3
  3. Meco G, Falaschi P, Casacchia M, et al "Neuroendocrine effects of haloperidol decanoate in patients with chronic schizophrenia." Adv Biochem Psychopharmacol 40 (1985): 89-93
View all 16 references
Moderate

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Dehydration

Moderate Potential Hazard, Moderate plausibility

Applies to: Dehydration, Diarrhea, Vomiting

Neuroleptic agents may cause hypotension (including orthostatic hypotension) and associated reflex tachycardia, syncope or dizziness, particularly during initiation of therapy or rapid escalation of dosage. Tolerance to the hypotensive effects often develops after a few doses to a few months. Rarely, fatal cardiac arrest has occurred secondary to severe hypotension. Therapy with neuroleptic agents should be administered cautiously in patients with conditions that would predispose them to hypotension, such as hypovolemia or dehydration (e.g., due to severe diarrhea or vomiting). In addition, neuroleptic agents can interfere with the body's ability to regulate core body temperature, occasionally producing hyperthermia during strenuous exercise, exposure to hot weather, and concomitant treatment with anticholinergic medications. Patients who are dehydrated may be particularly susceptible.

References

  1. "Product Information. Seroquel (quetiapine)." Zeneca Pharmaceuticals, Wilmington, DE.
  2. "Product Information. Geodon (ziprasidone)." Pfizer US Pharmaceuticals, New York, NY.
  3. "Product Information. Zyprexa (olanzapine)." Lilly, Eli and Company, Indianapolis, IN.
Moderate

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Liver Disease

Moderate Potential Hazard, Moderate plausibility

Applies to: Liver Disease

Most neuroleptic agents are extensively metabolized by the liver. The plasma concentrations of these agents may be increased and the half-lives prolonged in patients with impaired hepatic function. Therapy with neuroleptic agents should be administered cautiously in patients with significant liver disease. Lower initial dosages and slower titration may be appropriate.

References

  1. Hobbs DC "Metabolism of thiothixene." J Pharm Sci 57 (1968): 105-11
  2. Jann MW, Grimsley SR, Gray EC, Chang WH "Pharmacokinetics and pharmacodynamics of clozapine." Clin Pharmacokinet 24 (1993): 161-76
  3. "Product Information. Geodon (ziprasidone)." Pfizer US Pharmaceuticals, New York, NY.
View all 11 references
Moderate

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Parkinsonism

Moderate Potential Hazard, Moderate plausibility

Applies to: Parkinsonism

The use of neuroleptic agents is associated with pseudo-parkinsonian symptoms such as akinesia, bradykinesia, tremors, pill-rolling motion, cogwheel rigidity, and postural abnormalities including stooped posture and shuffling gait. The onset is usually 1 to 2 weeks following initiation of therapy or an increase in dosage. Older neuroleptic agents such as haloperidol are more likely to induce these effects, and their use may be contraindicated in patients with Parkinson's disease or parkinsonian symptoms.

References

  1. "Product Information. Orap Tablets (pimozide)." Gate Pharmaceuticals, Sellersville, PA.
  2. Pinder RM, Brogden RN, Swayer R, Speight TM, Spencer R, Avery GS "Pimozide: a review of its pharmacological properties and therapeutic uses in psychiatry." Drugs 12 (1976): 1-40
  3. Moleman P, Janzen G, von Bargen BA, et al "Relationship between age and incidence of parkinsonism in psychiatric patients treated with haloperidol." Am J Psychiatry 143 (1986): 232-4
View all 14 references
Moderate

Neuroleptics (Includes Fluoxetine/olanzapine) ↔ Seizure Disorders

Moderate Potential Hazard, Moderate plausibility

Applies to: CNS Disorder, Alcoholism

Neuroleptic agents can lower the seizure threshold and induce seizures, particularly when dosages are high or increased rapidly and during the initiation of therapy. Clozapine appears to have the greatest epileptogenic potential, while most of the other newer, atypical neuroleptic agents (e.g., risperidone, quetiapine, olanzapine), as well as haloperidol and molindone, have the least. Therapy with neuroleptic agents should be administered cautiously in patients with a history of seizures or other factors predisposing to seizures such as abnormal EEG, preexisting CNS pathology, or head trauma. Adequate anticonvulsant therapy should be maintained during administration of neuroleptic agents. Clozapine should not be used in patients with uncontrolled epilepsy.

References

  1. Mahr GC, Berchou R, Balon R "A grand mal seizure associated with desipramine and haloperidol." Can J Psychiatry 32 (1987): 463-4
  2. Welch J, Manschreck T, Redmond D "Clozapine-induced seizures and EEG changes." J Neuropsychiatry Clin Neurosci 6 (1994): 250-6
  3. Pinder RM, Brogden RN, Swayer R, Speight TM, Spencer R, Avery GS "Pimozide: a review of its pharmacological properties and therapeutic uses in psychiatry." Drugs 12 (1976): 1-40
View all 29 references
Moderate

Olanzapine (Includes Fluoxetine/olanzapine) ↔ Alt Elevations

Moderate Potential Hazard, Moderate plausibility

Applies to: Liver Disease

The use of olanzapine may be associated with elevations in serum transaminase. During clinical trials, 2% of patients exposed to olanzapine experienced clinically significant ALT (SGPT) elevations (>= 3 times the upper limit of normal), compared to none in the placebo group. Jaundice did not occur in any of the affected patients, however, and liver enzymes tended to return toward baseline during treatment or following its discontinuation. The manufacturer recommends that therapy with olanzapine be administered cautiously in patients with signs and symptoms of hepatic impairment and in patients with preexisting conditions associated with limited hepatic functional reserve. Periodic assessment of serum transaminases should be performed in patients with significant hepatic disease.

References

  1. "Product Information. Zyprexa (olanzapine)." Lilly, Eli and Company, Indianapolis, IN.
Moderate

Olanzapine (Includes Fluoxetine/olanzapine) ↔ Pku

Moderate Potential Hazard, High plausibility

Applies to: Phenylketonuria

Zyprexa Zydis (brand of olanzapine orally distintegrating tablets) contains 0.34 mg and 0.45 mg of phenylalanine per each 5 mg and 10 mg tablet, respectively. The phenylalanine content should be considered when this and similar products are used in patients who must restrict their intake of phenylalanine (i.e. phenylketonurics).

References

  1. "Product Information. Zyprexa (olanzapine)." Lilly, Eli and Company, Indianapolis, IN.
Moderate

Ssri (Includes Fluoxetine/olanzapine) ↔ Hyponatremia

Moderate Potential Hazard, Moderate plausibility

Applies to: Hyponatremia

Treatment with SSRI antidepressants can cause hyponatremia. Caution should be used when treating patients with hyponatremia or at greater risk of hyponatremia such as the elderly, patients taking diuretics or who are volume depleted.

Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Glaucoma

Moderate Potential Hazard, Moderate plausibility

Applies to: Glaucoma/Intraocular Hypertension, Glaucoma (Narrow Angle)

Some SSRI antidepressants such as fluoxetine, paroxetine and sertraline may have an effect on pupil size causing dilation. This effect can potentially narrow the eye angle resulting in increased intraocular pressure and angle closure glaucoma, especially in predisposed patients. These drugs should be used with caution in patients with angle-closure glaucoma or history of glaucoma.

Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Liver Disease

Moderate Potential Hazard, High plausibility

Applies to: Liver Disease

Selective serotonin reuptake inhibitors (SSRIs) are primarily metabolized by the liver. The plasma concentrations of SSRIs and their metabolites may be increased and the half-lives prolonged in patients with impaired hepatic function. Dosage adjustments may be necessary in accordance with the individual product package labeling.

References

  1. Guthrie SK "Sertraline: a new specific serotonin reuptake blocker." DICP 25 (1991): 952-61
  2. "Product Information. Celexa (citalopram)." Forest Pharmaceuticals, St. Louis, MO.
  3. Finley PR "Selective serotonin reuptake inhibitors: pharmacologic profiles and potential therapeutic distinctions." Ann Pharmacother 28 (1994): 1359-69
View all 17 references
Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Mania

Moderate Potential Hazard, Moderate plausibility

Applies to: Mania, Bipolar Disorder, Depression

Selective serotonin reuptake inhibitors (SSRIs), like other antidepressants, may occasionally cause or activate mania or hypomania. The reported incidence ranged from 0.1% to 2% in premarketing testing of several SSRIs. Patients with bipolar disorder are generally more likely to experience mania from antidepressants. Therapy with SSRIs should be administered cautiously in patients with a history of mania or bipolar disorder. Prior to initiating treatment it is recommended to adequately screen patients for bipolar disorder, including a family history of suicide, bipolar disorder, and depression.

References

  1. "Product Information. Zoloft (sertraline)." Roerig Division, New York, NY.
  2. Peet M "Induction of mania with selective serotonin re-uptake inhibitors and tricyclic antidepressants." Br J Psychiatry 164 (1994): 549-50
  3. Guthrie SK "Sertraline: a new specific serotonin reuptake blocker." DICP 25 (1991): 952-61
View all 27 references
Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Platelet Function

Moderate Potential Hazard, High plausibility

Applies to: Bleeding, Coagulation Defect, Thrombocytopathy, Thrombocytopenia, Vitamin K Deficiency

The use of selective serotonin reuptake inhibitors (SSRIs) has been associated with altered platelet function. Petechiae, purpura, ecchymosis, increased bleeding times, epistaxis and gastrointestinal hemorrhage have been reported. Therapy with SSRIs should be administered cautiously in patients with severe active bleeding or a hemorrhagic diathesis.

References

  1. Hergovich N, Aigner M, Eichler HG, Entlicher J, Drucker C, Jilma B "Paroxetine decreases platelet serotonin storage and platelet function in human beings." Clin Pharmacol Ther 68 (2000): 435-42
  2. "Product Information. Zoloft (sertraline)." Roerig Division, New York, NY.
  3. Skop BP, Brown TM "Potential vascular and bleeding complications of treatment with selective serotonin reuptake inhibitors." Psychosomatics 37 (1996): 12-6
View all 18 references
Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Qt Prolongation

Moderate Potential Hazard, Moderate plausibility

Applies to: Long QT Syndrome, Ventricular Arrhythmia

Some SSRI antidepressants such as fluoxetine and citalopram have shown to cause QT interval prolongation and ventricular arrhythmias including Torsade de Pointes. These drugs should be used with caution in patients with congenital QT syndrome, a previous personal or family history of QT prolongation, and ventricular arrhythmia. Consider periodic EKG assessment on these patients. Treatment should be discontinued and a cardiac evaluation should be considered if a patient develops signs or symptoms of ventricular arrhythmia.

Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Seizure Disorders

Moderate Potential Hazard, Moderate plausibility

Applies to: Seizures

Selective serotonin reuptake inhibitors (SSRIs) may trigger seizures in approximately 0.2% of patients, and some of them are not recommended in patients with unstable epilepsy. Therapy with SSRIs should be administered cautiously in patients with seizure disorders.

References

  1. Marshall RD, Printz D, Cardenas D, Abbate L, Liebowitz MR "Adverse events in PTSD patients taking fluoxetine." Am J Psychiatry 152 (1995): 1238-9
  2. Hargrave R, Martinez D, Bernstein AJ "Fluoxetine-induced seizures." Psychosomatics 33 (1992): 236-9
  3. "Product Information. Lexapro (escitalopram)." Forest Pharmaceuticals, St. Louis, MO.
View all 21 references
Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Siadh

Moderate Potential Hazard, Moderate plausibility

Applies to: Dehydration, Hyponatremia, SIADH

The use of selective serotonin reuptake inhibitors (SSRIs) has rarely been associated with hyponatremia, sometimes secondary to development of the syndrome of inappropriate secretion of antidiuretic hormone (SIADH). These events have generally been reversible following discontinuation of SSRI therapy and/or medical intervention. SSRI-related hyponatremia may be more common in elderly female patients and those who are volume-depleted or receiving concomitant diuretic therapy. Caution may be warranted when SSRI therapy is administered in these patients and patients with preexisting hyponatremia or SIADH. Serum electrolytes, especially sodium as well as BUN and plasma creatinine, should be monitored regularly.

References

  1. Schattner A, Skurnik Y "Fluoxetine-induced SIADH." J Am Geriatr Soc 44 (1996): 1413
  2. Kessler J, Samuels SC "Sertraline and hyponatremia." N Engl J Med 335 (1996): 524
  3. Baliga RR, McHardy KC "Syndrome of inappropriate antidiuretic hormone secretion due to fluvoxamine therapy [published erratum appears in Br J Clin Pract 1993 May-Jun;47(3):119]." Br J Clin Pract 47 (1993): 62-3
View all 30 references
Moderate

Fluoxetine (Includes Fluoxetine/olanzapine) ↔ Renal Dysfunction

Minor Potential Hazard, Low plausibility

Applies to: Renal Dysfunction

Fluoxetine is primarily metabolized by the liver. All but one metabolites are inactive, and they are excreted by the kidney. The clearance of norfluoxetine, the active metabolite, is not dependent on renal function. Dosage adjustments are generally not deemed necessary in patients with impaired renal function, although the clinical significance of possible metabolite accumulation is unknown. Caution may be warranted when fluoxetine therapy is administered in patients with severe renal dysfunction.

References

  1. Aronoff GR, Bergstrom RF, Pottratz ST, Sloan RS, Wolen RL, Lemberger L "Fluoxetine kinetics and protein binding in normal and impaired renal function." Clin Pharmacol Ther 36 (1984): 138-44
  2. "Product Information. Prozac (fluoxetine)." Dista Products Company, Indianapolis, IN.
Moderate

Ssris (Includes Fluoxetine/olanzapine) ↔ Weight Loss

Minor Potential Hazard, Moderate plausibility

Applies to: Weight Loss/Failure to Thrive, Malnourished, Anorexia/Feeding Problems

The use of selective serotonin reuptake inhibitors (SSRIs) may occasionally cause significant weight loss, which may be undesirable in patients suffering from anorexia, malnutrition or excessive weight loss. Anorexia may occur in approximately 5% to 10% of patients. Weight change should be monitored during therapy if an SSRI is used in these patients.

References

  1. "Product Information. Celexa (citalopram)." Forest Pharmaceuticals, St. Louis, MO.
  2. Fernstrom MH, Massoudi M, Kupfer DJ "Fluvoxamine and weight loss." Biol Psychiatry 24 (1988): 948-9
  3. Wagner W, Plekkenpol B, Gray TE, Vlaskamp H, Essers H "Review of fluvoxamine safety database." Drugs 43 Suppl 2 (1992): 48-53;disc. 53-4
View all 11 references

You should also know about...

fluoxetine / olanzapine drug Interactions

There are 1236 drug interactions with fluoxetine / olanzapine

fluoxetine / olanzapine alcohol/food Interactions

There are 5 alcohol/food interactions with fluoxetine / olanzapine

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.

Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.

Do not stop taking any medications without consulting your healthcare provider.

Disclaimer: Every effort has been made to ensure that the information provided by Multum is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. Multum's information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill, knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective, or appropriate for any given patient. Multum Information Services, Inc. does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. Copyright 2000-2016 Multum Information Services, Inc. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse, or pharmacist.

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