QC Cough / Cold Side Effects

Generic name: chlorpheniramine / dextromethorphan

Note: This document contains side effect information about chlorpheniramine / dextromethorphan. Some of the dosage forms listed on this page may not apply to the brand name QC Cough / Cold.

Some side effects of QC Cough / Cold may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Applies to chlorpheniramine / dextromethorphan: oral liquid, oral syrup, oral tablet, oral tablet chewable

Get emergency medical help if you have any of these signs of an allergic reaction while taking chlorpheniramine / dextromethorphan: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication and call your doctor at once if you have any of these serious side effects:

• fast, pounding, or uneven heartbeat;

• slow, shallow breathing;

• severe dizziness, anxiety, restless feeling, or nervousness;

• confusion, hallucinations, unusual thoughts or behavior;

• urinating less than usual or not at all; or

• easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms.

Less serious side effects of chlorpheniramine / dextromethorphan may include:

• dry mouth;

• nausea, stomach pain, constipation;

• blurred vision;

• dizziness, drowsiness;

• problems with memory or concentration;

• ringing in your ears; or

• restlessness or excitability (especially in children).

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.

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