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Dextromethorphan / Doxylamine / Pseudoephedrine Side Effects

Medically reviewed by Drugs.com. Last updated on Nov 14, 2024.

Applies to dextromethorphan / doxylamine / pseudoephedrine: oral liquid.

Important warnings This medicine can cause some serious health issues

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 any of these signs of an allergic reaction while taking dextromethorphan / doxylamine / 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:

Common side effects may include:

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

More about dextromethorphan / doxylamine / pseudoephedrine

Patient resources

Other brands

Lortuss DM

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Further information

Dextromethorphan/doxylamine/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.