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Guaifenesin / potassium guaiacolsulfonate Side Effects

Applies to guaifenesin/potassium guaiacolsulfonate: oral tablet extended release


Gastrointestinal side effects have included nausea, vomiting, and stomach discomfort.[Ref]

Nervous system

Nervous system side effects have included dizziness and headache.[Ref]


Dermatologic side effects have included skin rash and urticaria.[Ref]


1. "Product Information. Humibid L.A. (guaifenesin-potassium guaiacolsulfonate)." Carolina Pharmaceuticals Inc, Cary, NC.

Some side effects of guaifenesin / potassium guaiacolsulfonate may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

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