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Can you take Atomoxetine with Ryna-12X?

1 drug interaction and 35 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

phenylephrine atomoxetine

Applies to: Ryna-12X (guaifenesin / phenylephrine / pyrilamine) and atomoxetine

Both phenylephrine and atomoxetine can increase blood pressure and heart rate, and combining them may enhance these effects. Talk to your doctor before using these medications, especially if you have a history of high blood pressure or heart disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Food/lifestyle interactions

Moderate food/lifestyle interactions

Moderate:

pyrilamine Food/Lifestyle

Applies to: Ryna-12X (guaifenesin / phenylephrine / pyrilamine)

Alcohol can increase the nervous system side effects of pyrilamine such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with pyrilamine. Do not use more than the recommended dose of pyrilamine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.

Moderate:

phenylephrine Caffeine

Applies to: Ryna-12X (guaifenesin / phenylephrine / pyrilamine)

Both phenylephrine and caffeine can increase blood pressure and heart rate, and combining them may enhance these effects. Talk to your doctor before using these medications, especially if you have a history of high blood pressure or heart disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Disease interactions

33 potential interactions Applies to: 22 conditions, including High Blood Pressure, Depression, Bipolar Disorder, Asthma, and Benign Prostatic Hyperplasia.

Asthma

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Asthma.

It has been suggested that the anticholinergic effect of antihistamines may reduce the volume and cause thickening of bronchial secretions, resulting in obstruction of respiratory tract. Some manufacturers and clinicians recommend that therapy with antihistamines be administered cautiously in patients with asthma or chronic obstructive pulmonary disease.

Benign Prostatic Hyperplasia

Moderate:

Ryna-12X

The phenylephrine in Ryna-12X has a moderate potential interaction with Benign Prostatic Hyperplasia.

Sympathomimetic agents may cause or worsen urinary difficulty in patients with prostate enlargement due to smooth muscle contraction in the bladder neck via stimulation of alpha-1 adrenergic receptors. Therapy with sympathomimetic agents should be administered cautiously in patients with hypertrophy or neoplasm of the prostate.

Bipolar Disorder

Major:

atomoxetine

Atomoxetine has a major potential interaction with Bipolar Disorder.

Atomoxetine increased the risk of suicidal ideation in pediatric patients with ADHD, and patients should be monitored closely for suicidal thoughts and behavior, clinical worsening, or unusual behavioral changes, especially during initial therapy or dosage changes. Before initiating atomoxetine, patients should be screened for bipolar disorder risk factors, and discontinuation should be considered if treatment-emergent psychotic or manic symptoms occur.

Cardiovascular Conditions and Disorders

Major:

Ryna-12X

The phenylephrine in Ryna-12X has a major potential interaction with Cardiovascular Conditions and Disorders.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

Moderate:

atomoxetine

Atomoxetine has a moderate potential interaction with Cardiovascular Conditions and Disorders.

Atomoxetine should be used with caution both in patients with conditions that may predispose them to hypotension or abrupt changes in heart rate or blood pressure, and in patients with underlying medical conditions that could be worsened by increases in blood pressure or heart rate, such as hypertension, tachycardia, cardiovascular disease, or cerebrovascular disease. Heart rate and blood pressure should be measured at baseline, following atomoxetine dosage increases, and periodically during therapy to detect clinically important increases.

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Cardiovascular Conditions and Disorders.

Antihistamines may infrequently cause cardiovascular adverse effects related to their anticholinergic and local anesthetic (quinidine-like) activities. Tachycardia, palpitation, ECG changes, arrhythmias, hypotension, and hypertension have been reported. Although these effects are uncommon and usually limited to overdosage situations, the manufacturers and some clinicians recommend that therapy with antihistamines be administered cautiously in patients with cardiovascular disease, hypertension, and/or hyperthyroidism.

Cerebral Vascular Disorder

Moderate:

atomoxetine

Atomoxetine has a moderate potential interaction with Cerebral Vascular Disorder.

Atomoxetine should be used with caution both in patients with conditions that may predispose them to hypotension or abrupt changes in heart rate or blood pressure, and in patients with underlying medical conditions that could be worsened by increases in blood pressure or heart rate, such as hypertension, tachycardia, cardiovascular disease, or cerebrovascular disease. Heart rate and blood pressure should be measured at baseline, following atomoxetine dosage increases, and periodically during therapy to detect clinically important increases.

Cerebrovascular Insufficiency

Major:

Ryna-12X

The phenylephrine in Ryna-12X has a major potential interaction with Cerebrovascular Insufficiency.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

COPD

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with COPD.

It has been suggested that the anticholinergic effect of antihistamines may reduce the volume and cause thickening of bronchial secretions, resulting in obstruction of respiratory tract. Some manufacturers and clinicians recommend that therapy with antihistamines be administered cautiously in patients with asthma or chronic obstructive pulmonary disease.

Depression

Major:

atomoxetine

Atomoxetine has a major potential interaction with Depression.

Atomoxetine increased the risk of suicidal ideation in pediatric patients with ADHD, and patients should be monitored closely for suicidal thoughts and behavior, clinical worsening, or unusual behavioral changes, especially during initial therapy or dosage changes. Before initiating atomoxetine, patients should be screened for bipolar disorder risk factors, and discontinuation should be considered if treatment-emergent psychotic or manic symptoms occur.

Major:

Ryna-12X

The pyrilamine in Ryna-12X has a major potential interaction with Depression.

A variety of abnormal thinking and behavior changes have been reported to occur in association with the use of most anxiolytics, sedatives and hypnotics. Some of these changes include decreased inhibition, aggressiveness, agitation, and hallucinations. These drugs can cause or exacerbate mental depression and cause suicidal behavior and ideation. Therapy with these drugs should be administered cautiously in patients with a history of depression or other psychiatric disorders. Patients should be monitored for any changes in mood or behavior. It may be prudent to refrain from dispensing large quantities of medication to these patients.

Diabetes Mellitus

Moderate:

Ryna-12X

The phenylephrine in Ryna-12X has a moderate potential interaction with Diabetes Mellitus.

Sympathomimetic agents may cause increases in blood glucose concentrations. These effects are usually transient and slight but may be significant with dosages higher than those normally recommended. Therapy with sympathomimetic agents should be administered cautiously in patients with diabetes mellitus. Closer monitoring of blood glucose concentrations may be appropriate.

Gastrointestinal Obstruction

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Gastrointestinal Obstruction.

Antihistamines often have anticholinergic activity, to which elderly patients are particularly sensitive. Therapy with antihistamines should be administered cautiously, if at all, 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. Conventional, first-generation antihistamines such as the ethanolamines (bromodiphenhydramine, carbinoxamine, clemastine, dimenhydrinate, diphenhydramine, doxylamine, phenyltoloxamine) tend to exhibit substantial anticholinergic effects. In contrast, the newer, relatively nonsedating antihistamines (e.g., cetirizine, fexofenadine, loratadine) reportedly have low to minimal anticholinergic activity at normally recommended dosages and may be appropriate alternatives.

Glaucoma, Narrow Angle

Major:

atomoxetine

Atomoxetine has a major potential interaction with Glaucoma, Narrow Angle.

The use of atomoxetine is contraindicated in patients with narrow angle glaucoma. In clinical trials, atomoxetine use was associated with an increased risk of mydriasis.

Glaucoma/Intraocular Hypertension

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Glaucoma/Intraocular Hypertension.

Antihistamines often have anticholinergic activity, to which elderly patients are particularly sensitive. Therapy with antihistamines should be administered cautiously, if at all, 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. Conventional, first-generation antihistamines such as the ethanolamines (bromodiphenhydramine, carbinoxamine, clemastine, dimenhydrinate, diphenhydramine, doxylamine, phenyltoloxamine) tend to exhibit substantial anticholinergic effects. In contrast, the newer, relatively nonsedating antihistamines (e.g., cetirizine, fexofenadine, loratadine) reportedly have low to minimal anticholinergic activity at normally recommended dosages and may be appropriate alternatives.

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Glaucoma/Intraocular Hypertension.

Some hypnotic drugs can have an anticholinergic effect and should be used with caution in patients with glaucoma, and trouble urinating due to retention or enlarged prostate.

Moderate:

Ryna-12X

The phenylephrine in Ryna-12X has a moderate potential interaction with Glaucoma/Intraocular Hypertension.

Sympathomimetic agents can induce transient mydriasis via stimulation of alpha-1 adrenergic receptors. In patients with anatomically narrow angles or narrow-angle glaucoma, pupillary dilation can provoke an acute attack. In patients with other forms of glaucoma, mydriasis may occasionally increase intraocular pressure. Therapy with sympathomimetic agents should be administered cautiously in patients with or predisposed to glaucoma, particularly narrow-angle glaucoma.

Heart Disease

Major:

atomoxetine

Atomoxetine has a major potential interaction with Heart Disease.

Atomoxetine is contraindicated in patients with severe cardiac or vascular disorders whose condition would be expected to deteriorate if they had clinically important increase in blood pressure (e.g., 15 to 20 mmHg) or heart rate (e.g., 20 beats per minute). Atomoxetine generally should not be used in pediatric patients with known serious structural cardiac abnormalities, cardiomyopathy, serious arrhythmias, or other serious cardiac problems, and clinicians should consider not treating adults with clinically significant cardiac abnormalities, due to the risk of sudden death. Carefully assess cardiovascular history and perform physical exam before treatment, conduct further cardiac evaluation when indicated, and stop atomoxetine pending prompt cardiac evaluation if exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease occur.

High Blood Pressure

Major:

atomoxetine

Atomoxetine has a major potential interaction with High Blood Pressure.

CNS stimulants increase blood pressure and heart rate; the use of some agents may be contraindicated in patients with severe/uncontrolled hypertension. Caution should be used when administering to patients with preexisting high blood pressure (even mild hypertension) and other cardiovascular conditions. All patients under treatment should be regularly monitored for potential tachycardia and hypertension.

Hyperthyroidism

Major:

Ryna-12X

The phenylephrine in Ryna-12X has a major potential interaction with Hyperthyroidism.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Hyperthyroidism.

Antihistamines may infrequently cause cardiovascular adverse effects related to their anticholinergic and local anesthetic (quinidine-like) activities. Tachycardia, palpitation, ECG changes, arrhythmias, hypotension, and hypertension have been reported. Although these effects are uncommon and usually limited to overdosage situations, the manufacturers and some clinicians recommend that therapy with antihistamines be administered cautiously in patients with cardiovascular disease, hypertension, and/or hyperthyroidism.

Hypotension

Moderate:

atomoxetine

Atomoxetine has a moderate potential interaction with Hypotension.

Atomoxetine should be used with caution both in patients with conditions that may predispose them to hypotension or abrupt changes in heart rate or blood pressure, and in patients with underlying medical conditions that could be worsened by increases in blood pressure or heart rate, such as hypertension, tachycardia, cardiovascular disease, or cerebrovascular disease. Heart rate and blood pressure should be measured at baseline, following atomoxetine dosage increases, and periodically during therapy to detect clinically important increases.

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Hypotension.

Antihistamines may infrequently cause cardiovascular adverse effects related to their anticholinergic and local anesthetic (quinidine-like) activities. Tachycardia, palpitation, ECG changes, arrhythmias, hypotension, and hypertension have been reported. Although these effects are uncommon and usually limited to overdosage situations, the manufacturers and some clinicians recommend that therapy with antihistamines be administered cautiously in patients with cardiovascular disease, hypertension, and/or hyperthyroidism.

Liver Disease

Moderate:

atomoxetine

Atomoxetine has a moderate potential interaction with Liver Disease.

Atomoxetine can cause severe liver injury. Atomoxetine exposure is increased in patients with moderate or severe hepatic impairment, and a lower dosage is recommended in these patients. Atomoxetine should be permanently discontinued in patients with jaundice or laboratory evidence of liver injury. Liver enzyme and function tests should be obtained at the first symptom or sign of liver dysfunction.

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Liver Disease.

In general, anxiolytics, sedatives and hypnotics are extensively metabolized by the liver. Their plasma clearance may be decreased and their half-life prolonged in patients with impaired hepatic function. Therapy with these drugs should be administered cautiously in patients with liver disease (some are not recommended in severe liver impairment), and the dosage should be adjusted accordingly. Laboratory testing is recommended prior and during treatment.

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Liver Disease.

Limited pharmacokinetic data are available for the older, first-generation antihistamines. Many appear to be primarily metabolized by the liver, and both parent drugs and metabolites are excreted in the urine. Patients with renal and/or liver disease may be at greater risk for adverse effects from antihistamines due to drug and metabolite accumulation. Therapy with antihistamines should be administered cautiously in such patients. Lower initial dosages may be appropriate.

Pheochromocytoma

Major:

atomoxetine

Atomoxetine has a major potential interaction with Pheochromocytoma.

Atomoxetine is contraindicated in patients with pheochromocytoma or a history of pheochromocytoma. Serious reactions, including elevated blood pressure and tachyarrhythmia, have been reported in patients with pheochromocytoma or a history of pheochromocytoma who received atomoxetine.

Major:

Ryna-12X

The phenylephrine in Ryna-12X has a major potential interaction with Pheochromocytoma.

Sympathomimetic agents may cause adverse cardiovascular effects, particularly when used in high dosages and/or in susceptible patients. In cardiac tissues, these agents may produce positive chronotropic and inotropic effects via stimulation of beta- 1 adrenergic receptors. Cardiac output, oxygen consumption, and the work of the heart may be increased. In the peripheral vasculature, vasoconstriction may occur via stimulation of alpha-1 adrenergic receptors. Palpitations, tachycardia, arrhythmia, hypertension, reflex bradycardia, coronary occlusion, cerebral vasculitis, myocardial infarction, cardiac arrest, and death have been reported. Some of these agents, particularly ephedra alkaloids (ephedrine, ma huang, phenylpropanolamine), may also predispose patients to hemorrhagic and ischemic stroke. Therapy with sympathomimetic agents should generally be avoided or administered cautiously in patients with sensitivity to sympathomimetic amines, hyperthyroidism, or underlying cardiovascular or cerebrovascular disorders. These agents should not be used in patients with severe coronary artery disease or severe/uncontrolled hypertension.

Prostate Tumor, Benign

Moderate:

Ryna-12X

The phenylephrine in Ryna-12X has a moderate potential interaction with Prostate Tumor, Benign.

Sympathomimetic agents may cause or worsen urinary difficulty in patients with prostate enlargement due to smooth muscle contraction in the bladder neck via stimulation of alpha-1 adrenergic receptors. Therapy with sympathomimetic agents should be administered cautiously in patients with hypertrophy or neoplasm of the prostate.

Psychosis

Major:

atomoxetine

Atomoxetine has a major potential interaction with Psychosis.

Atomoxetine increased the risk of suicidal ideation in pediatric patients with ADHD, and patients should be monitored closely for suicidal thoughts and behavior, clinical worsening, or unusual behavioral changes, especially during initial therapy or dosage changes. Before initiating atomoxetine, patients should be screened for bipolar disorder risk factors, and discontinuation should be considered if treatment-emergent psychotic or manic symptoms occur.

Renal Dysfunction

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Renal Dysfunction.

Limited pharmacokinetic data are available for the older, first-generation antihistamines. Many appear to be primarily metabolized by the liver, and both parent drugs and metabolites are excreted in the urine. Patients with renal and/or liver disease may be at greater risk for adverse effects from antihistamines due to drug and metabolite accumulation. Therapy with antihistamines should be administered cautiously in such patients. Lower initial dosages may be appropriate.

Urinary Retention

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Urinary Retention.

Some hypnotic drugs can have an anticholinergic effect and should be used with caution in patients with glaucoma, and trouble urinating due to retention or enlarged prostate.

Moderate:

Ryna-12X

The pyrilamine in Ryna-12X has a moderate potential interaction with Urinary Retention.

Antihistamines often have anticholinergic activity, to which elderly patients are particularly sensitive. Therapy with antihistamines should be administered cautiously, if at all, 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. Conventional, first-generation antihistamines such as the ethanolamines (bromodiphenhydramine, carbinoxamine, clemastine, dimenhydrinate, diphenhydramine, doxylamine, phenyltoloxamine) tend to exhibit substantial anticholinergic effects. In contrast, the newer, relatively nonsedating antihistamines (e.g., cetirizine, fexofenadine, loratadine) reportedly have low to minimal anticholinergic activity at normally recommended dosages and may be appropriate alternatives.

More resources

atomoxetine

A total of 444 drugs are known to interact with atomoxetine.

Ryna-12X

A total of 570 drugs are known to interact with Ryna-12X.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
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.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.