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Hexafed Side Effects

Generic name: dexchlorpheniramine / pseudoephedrine

Medically reviewed by Drugs.com. Last updated on Jan 25, 2022.

Note: This document contains side effect information about dexchlorpheniramine / pseudoephedrine. Some dosage forms listed on this page may not apply to the brand name Hexafed.

Applies to dexchlorpheniramine / pseudoephedrine: oral liquid, oral suspension extended release, oral tablet.

Do not use this medicine if you have taken an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, phenelzine, rasagiline, selegiline, and tranylcypromine.

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using dexchlorpheniramine and pseudoephedrine and call your doctor at once if you have:

  • chest pain, rapid pulse, fast or uneven heart rate;

  • confusion, hallucinations, severe nervousness;

  • tremor, seizure (convulsions);

  • little or no urinating;

  • easy bruising or bleeding, unusual weakness; or

  • dangerously high blood pressure (severe headache, buzzing in your ears, anxiety, shortness of breath).

Common side effects may include:

  • dizziness, drowsiness, blurred vision;

  • dry nose or mouth;

  • nausea, stomach pain, constipation, loss of appetite;

  • problems with memory or concentration; or

  • feeling restless or excited (especially in children).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

More about Hexafed (dexchlorpheniramine / pseudoephedrine)

Patient resources

Other brands

AllerDur, Deltuss DP, Rescon, SuTan

Related treatment guides

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.