Relacon LAX Side Effects
Generic Name: dextromethorphan / guaifenesin
Note: This document contains side effect information about dextromethorphan / guaifenesin. Some of the dosage forms listed on this page may not apply to the brand name Relacon LAX.
Some side effects of Relacon LAX may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
For the Consumer
Applies to dextromethorphan / guaifenesin: capsules, elixir, extended-release liquid, extended-release tablets, granule packets, liquid, solution, suspension, sustained-release tablets, syrup, tablets
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:
Dizziness; drowsiness; stomach upset.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).
For Healthcare Professionals
Applies to dextromethorphan / guaifenesin: oral capsule, oral capsule extended release, oral elixir, oral granule, oral liquid, oral suspension extended release, oral tablet, oral tablet extended release
Nervous system side effects of dextromethorphan have included drowsiness and dizziness. Adverse effects, which have occurred at higher doses, include excitation, mental confusion, and opioid like respiratory depression. In some cases of abuse, patients have experienced euphoria, hyperactivity, mania, and auditory and visual hallucinations.
Gastrointestinal side effects have included nausea, vomiting and constipation.
Dermatologic side effects have included pruritus and rash.
Hypersensitivity side effects of dextromethorphan have included fixed-drug eruptions.
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