Comtrex Cold and Cough Maximum Strength

• If you have an allergy to acetaminophen, dextromethorphan, phenylephrine, or any other part of Comtrex Cold and Cough Maximum Strength (acetaminophen, dextromethorphan, and phenylephrine capsules and tablets).
• If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
• If you have taken certain drugs used for low mood (depression) like isocarboxazid, phenelzine, or tranylcypromine or drugs used for Parkinson's disease like selegiline or rasagiline in the last 14 days. Taking this medicine within 14 days of those drugs can cause very bad high blood pressure.
• If you have a cough with a lot of mucous.
• If you have a long-term cough caused by smoking or being around smoke, or lung problems like asthma or emphysema.

This is not a list of all drugs or health problems that interact with Comtrex Cold and Cough Maximum Strength.

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this medicine with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.