Phenylephrine And Promethazine: What Other Drugs Will Affect Phenylephrine And Promethazine


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What other drugs will affect phenylephrine and promethazine?


Do not take phenylephrine and promethazine if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), tranylcypromine (Parnate), or selegiline (Eldepryl) in the last 14 days. A dangerous drug interaction could occur, leading to serious side effects.

Phenylephrine and promethazine may increase the effects of other drugs that cause drowsiness, including antidepressants, alcohol, sedatives (used to treat insomnia), pain relievers, anxiety medicines, and muscle relaxants. Tell your doctor about all medicines that you are taking, and do not take any medicine unless your doctor approves.

Do not take other over-the-counter cough, cold, allergy, diet, pain, fever, or sleep medicines while taking phenylephrine and promethazine without first talking to your doctor or pharmacist. Other medications may also contain phenylephrine, promethazine or other similar drugs, and you may accidentally take too much, which could be harmful.

Drugs other than those listed here may also interact with phenylephrine and promethazine. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including vitamins, minerals, and herbal products.



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Last updated: February 13, 2004

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