Desgen DM Side Effects

Generic Name: dextromethorphan / guaifenesin / phenylephrine

Note: This page contains information about the side effects of dextromethorphan / guaifenesin / phenylephrine. Some of the dosage forms included on this document may not apply to the brand name Desgen DM.

For the Consumer

Applies to dextromethorphan / guaifenesin / phenylephrine: oral drops, tablets

Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Diarrhea; dizziness; drowsiness; excitability; headache; irritability; nausea; stomach upset; trouble sleeping.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast, slow, or irregular heartbeat; fever; hallucinations; mental or mood changes (eg, anxiety, nervousness); paleness; seizures; severe or persistent dizziness, lightheadedness, or headache; tremor.

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

Cardiovascular

Cardiovascular side effects have included palpitations, tachycardia, and cardiovascular collapse and death.^[Ref]

Gastrointestinal

Gastrointestinal side effects have included nausea and vomiting.^[Ref]

Nervous system

Nervous system side effects have included nervousness, dizziness, sleeplessness, light-headedness, tremor, hallucinations, convulsions, CNS depression, fear, anxiety, headache, and increased irritability or excitement.^[Ref]

Respiratory

Respiratory side effects have included respiratory difficulties.^[Ref]

General

General side effects have included weakness and slight drowsiness.^[Ref]

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

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