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Hista-Vent PSE Side Effects

Generic Name: chlorpheniramine / methscopolamine / pseudoephedrine

Note: This page contains information about the side effects of chlorpheniramine / methscopolamine / pseudoephedrine. Some of the dosage forms included on this document may not apply to the brand name Hista-Vent PSE.

Applies to chlorpheniramine / methscopolamine / pseudoephedrine: oral syrup, oral tablet extended release

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

Stop using this medicine and call your doctor at once if you have:

  • fast or uneven heart rate;

  • pounding heartbeats or fluttering in your chest;

  • painful or difficult urination, little or no urinating;

  • tremors, seizure (convulsions); or

  • mood changes, severe dizziness or anxiety, double vision, hallucinations.

Common side effects may include:

  • headache, dizziness, drowsiness;

  • dry mouth, nose, or throat;

  • nausea, loss of appetite, diarrhea, constipation;

  • blurred vision;

  • sleep problems (insomnia); 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.

Not all side effects for Hista-Vent PSE may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

More about Hista-Vent PSE (chlorpheniramine / methscopolamine / pseudoephedrine)

Consumer resources

Other brands: DryMax, PCM-LA

Professional resources

Related treatment guides

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