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Drug interactions between brimonidine / dorzolamide / timolol ophthalmic and dexchlorpheniramine / dextromethorphan / phenylephrine / pyrilamine

Results for the following 2 drugs:
brimonidine/dorzolamide/timolol ophthalmic
dexchlorpheniramine/dextromethorphan/phenylephrine/pyrilamine

Interactions between your drugs

Moderate

phenylephrine timolol ophthalmic

Applies to: dexchlorpheniramine / dextromethorphan / phenylephrine / pyrilamine and brimonidine / dorzolamide / timolol ophthalmic

Using phenylephrine together with a beta-blocker like timolol ophthalmic may lead to an increase in blood pressure. Some beta-blockers may enhance the effects of phenylephrine, which can lead to constriction of your blood vessels and an increase in blood pressure. Contact your doctor if your condition changes. You may need a dose adjustment or your blood pressure checked more often if you use both medications. 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.

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Moderate

dexchlorpheniramine brimonidine ophthalmic

Applies to: dexchlorpheniramine / dextromethorphan / phenylephrine / pyrilamine and brimonidine / dorzolamide / timolol ophthalmic

After using brimonidine ophthalmic, some of the medication may be absorbed into the bloodstream and occasionally produce central nervous system side effects such as dizziness, drowsiness, and difficulty concentrating. Combining it with dexchlorpheniramine or other medications that can also have these effects may increase the risk. 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, and use caution when getting up from a sitting or lying position. 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.

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Moderate

dextromethorphan brimonidine ophthalmic

Applies to: dexchlorpheniramine / dextromethorphan / phenylephrine / pyrilamine and brimonidine / dorzolamide / timolol ophthalmic

After using brimonidine ophthalmic, some of the medication may be absorbed into the bloodstream and occasionally produce central nervous system side effects such as dizziness, drowsiness, and difficulty concentrating. Combining it with dextromethorphan or other medications that can also have these effects may increase the risk. 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, and use caution when getting up from a sitting or lying position. 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.

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Moderate

pyrilamine brimonidine ophthalmic

Applies to: dexchlorpheniramine / dextromethorphan / phenylephrine / pyrilamine and brimonidine / dorzolamide / timolol ophthalmic

After using brimonidine ophthalmic, some of the medication may be absorbed into the bloodstream and occasionally produce central nervous system side effects such as dizziness, drowsiness, and difficulty concentrating. Combining it with pyrilamine or other medications that can also have these effects may increase the risk. 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, and use caution when getting up from a sitting or lying position. 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.

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Drug and food interactions

Moderate

pyrilamine food

Applies to: dexchlorpheniramine / dextromethorphan / 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.

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Moderate

dexchlorpheniramine food

Applies to: dexchlorpheniramine / dextromethorphan / phenylephrine / pyrilamine

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

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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.

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