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Can you take Chlorpheniramine / phenylephrine / phenyltoloxamine with Trospium?

3 drug interactions and 30 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

chlorpheniramine phenyltoloxamine

Applies to: chlorpheniramine / phenylephrine / phenyltoloxamine and chlorpheniramine / phenylephrine / phenyltoloxamine

Using chlorpheniramine together with phenyltoloxamine may increase side effects such as drowsiness, blurred vision, dry mouth, heat intolerance, flushing, decreased sweating, difficulty urinating, abdominal cramping, constipation, irregular heartbeat, confusion, and memory problems. Side effects may be more likely to occur in the elderly or those with a debilitating condition. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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.

Moderate:

chlorpheniramine trospium

Applies to: chlorpheniramine / phenylephrine / phenyltoloxamine and trospium

Using chlorpheniramine together with trospium may increase side effects such as drowsiness, blurred vision, dry mouth, heat intolerance, flushing, decreased sweating, difficulty urinating, abdominal cramping, constipation, irregular heartbeat, confusion, and memory problems. Side effects may be more likely to occur in the elderly or those with a debilitating condition. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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.

Moderate:

phenyltoloxamine trospium

Applies to: chlorpheniramine / phenylephrine / phenyltoloxamine and trospium

Using phenyltoloxamine together with trospium may increase side effects such as drowsiness, blurred vision, dry mouth, heat intolerance, flushing, decreased sweating, difficulty urinating, abdominal cramping, constipation, irregular heartbeat, confusion, and memory problems. Side effects may be more likely to occur in the elderly or those with a debilitating condition. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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:

chlorpheniramine Food/Lifestyle

Applies to: chlorpheniramine / phenylephrine / phenyltoloxamine

Alcohol can increase the nervous system side effects of chlorpheniramine 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 chlorpheniramine. Do not use more than the recommended dose of chlorpheniramine, 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:

phenyltoloxamine Food/Lifestyle

Applies to: chlorpheniramine / phenylephrine / phenyltoloxamine

Alcohol can increase the nervous system side effects of phenyltoloxamine 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 phenyltoloxamine. Do not use more than the recommended dose of phenyltoloxamine, 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:

trospium Food/Lifestyle

Applies to: trospium

Trospium should be taken on an empty stomach 1 hour before or 2 hours after a meal unless otherwise directed by your doctor. You may experience reduced absorption of trospium in the presence of food. This will make it easier for your body to absorb the medication.

Moderate:

phenylephrine Caffeine

Applies to: chlorpheniramine / phenylephrine / phenyltoloxamine

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

26 potential interactions Applies to: 19 conditions, including Asthma, Benign Prostatic Hyperplasia, COPD, Hypotension, and Hyperthyroidism.

Alcoholism

Moderate:

trospium

Trospium has a moderate potential interaction with Alcoholism.

The use of alcohol may enhance the drowsiness caused by anticholinergic agents. It is recommended that alcohol should not be consumed within 2 hours of trospium administration. Caution should be exercised when using this agent in alcoholic patients.

Asthma

Moderate:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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.

Cardiovascular Conditions and Disorders

Major:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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.

Cerebrovascular Insufficiency

Major:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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.

Diabetes Mellitus

Moderate:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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

Major:

trospium

Trospium has a major potential interaction with Gastrointestinal Obstruction.

The use of trospium is contraindicated in patients with gastric retention. Trospium reduces the tonus of smooth muscle and may decrease gastrointestinal motility, hence it should be used with caution in patients with conditions such as ulcerative colitis, intestinal atony and myasthenia gravis. Caution should be exercised when using this drug in patients with gastrointestinal obstructive disorders as it increases the risk of gastric retention.

Moderate:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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:

trospium

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

The use of trospium is contraindicated in patients with uncontrolled narrow-angle glaucoma. In those patients being treated for narrow-angle glaucoma, trospium should only be used if the potential benefits outweigh the risks and in that circumstance only with careful monitoring.

Glaucoma/Intraocular Hypertension

Moderate:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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.

Hyperthyroidism

Major:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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.

Moderate:

trospium

Trospium has a moderate potential interaction with Liver Disease.

Caution is advised when administering trospium to patients with moderate to severe hepatic impairment. There is no information regarding the effect of severe hepatic impairment on exposure to trospium.

Myasthenia Gravis

Major:

trospium

Trospium has a major potential interaction with Myasthenia Gravis.

The use of trospium is contraindicated in patients with gastric retention. Trospium reduces the tonus of smooth muscle and may decrease gastrointestinal motility, hence it should be used with caution in patients with conditions such as ulcerative colitis, intestinal atony and myasthenia gravis. Caution should be exercised when using this drug in patients with gastrointestinal obstructive disorders as it increases the risk of gastric retention.

Pheochromocytoma

Major:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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:

chlorpheniramine / phenylephrine / phenyltoloxamine

The phenylephrine in chlorpheniramine / phenylephrine / phenyltoloxamine 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.

Renal Dysfunction

Moderate:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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.

Moderate:

trospium

Trospium has a moderate potential interaction with Renal Dysfunction.

Trospium is known to be substantially excreted by the kidney, and the risk of adverse reactions may be greater in patients with impaired renal function. A reduced dose is recommended in patients with severe renal impairment (CrCl less than 30 mL/minute). The pharmacokinetics of trospium have not been studied in patients with CrCl 30 to 80 mL/min.

Ulcerative Colitis

Major:

trospium

Trospium has a major potential interaction with Ulcerative Colitis.

The use of trospium is contraindicated in patients with gastric retention. Trospium reduces the tonus of smooth muscle and may decrease gastrointestinal motility, hence it should be used with caution in patients with conditions such as ulcerative colitis, intestinal atony and myasthenia gravis. Caution should be exercised when using this drug in patients with gastrointestinal obstructive disorders as it increases the risk of gastric retention.

Urinary Retention

Major:

trospium

Trospium has a major potential interaction with Urinary Retention.

Use of trospium is contraindicated in patients with urinary retention. Administer trospium with caution in patients with clinically significant bladder outflow obstruction because of the risk of urinary retention.

Moderate:

chlorpheniramine / phenylephrine / phenyltoloxamine

The chlorpheniramine and phenyltoloxamine in chlorpheniramine / phenylephrine / phenyltoloxamine both have 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

chlorpheniramine / phenylephrine / phenyltoloxamine

A total of 531 drugs are known to interact with chlorpheniramine / phenylephrine / phenyltoloxamine.

trospium

A total of 332 drugs are known to interact with trospium.

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.