Tussex Side Effects
Generic Name: dextromethorphan / guaifenesin / phenylephrine
Note: This page contains side effects data for the generic drug dextromethorphan / guaifenesin / phenylephrine. It is possible that some of the dosage forms included below may not apply to the brand name Tussex.
For the Consumer
Applies to dextromethorphan / guaifenesin / phenylephrine: oral drops, tablets
Other dosage forms:
Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur while taking dextromethorphan / guaifenesin / phenylephrine:
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 side effects have included palpitations, tachycardia, and cardiovascular collapse and death.[Ref]
Gastrointestinal side effects have included nausea and vomiting.[Ref]
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 side effects have included respiratory difficulties.[Ref]
General side effects have included weakness and slight drowsiness.[Ref]
1. "Product Information. Maxiphen DM (dextromethorphan / guaifenesin / phenylephrine)." MCR American Pharmaceuticals Inc, Brookville, FL.
It is possible that some side effects of Tussex may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.
More about Tussex (dextromethorphan / guaifenesin / phenylephrine)
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
- Support Group
- 0 Reviews – Add your own review/rating
- Drug class: upper respiratory combinations