Dexchlorpheniramine / Pseudoephedrine Side Effects

Medically reviewed by Drugs.com. Last updated on Jan 15, 2025.

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

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.

See also:

Further information

Dexchlorpheniramine/pseudoephedrine side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer