Desgen DM Side Effects

Generic name: dextromethorphan / guaifenesin / phenylephrine

Medically reviewed by Drugs.com. Last updated on Jan 14, 2025.

Note: This document provides detailed information about Desgen DM Side Effects associated with dextromethorphan / guaifenesin / phenylephrine. Some dosage forms listed on this page may not apply specifically to the brand name Desgen DM.

Applies to dextromethorphan / guaifenesin / phenylephrine: oral liquid, oral syrup, oral tablet.

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

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

• little or no urination;

• fast or slow heartbeats;

• confusion, dizziness, feeling unsteady;

• nervousness, sleep problems (insomnia);

• severe nausea or vomiting;

• severe headache, blurred vision, pounding in your neck or ears;

• slow breathing; or

• unusual changes in mood or behavior.

Common side effects may include:

• diarrhea, constipation;

• dizziness, drowsiness;

• sleep problems (insomnia); or

• feeling nervous, restless, or irritable.

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

See also:

For healthcare professionals

Applies to dextromethorphan/guaifenesin/phenylephrine: oral capsule, oral liquid, oral suspension, oral suspension extended release, oral syrup, oral tablet, oral tablet extended release.

General adverse events

The manufacturer has not provided adverse event information.^[Ref]

Further information

Desgen DM 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