guaifenesin

Medically Reviewed by Dr. Harshi Dhingra, M.D.

Last Reviewed: Dec 13, 2022

Pros & Cons


Guaifenesin Pros and Cons

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  • Guaifenesin is available over-the-counter.
  • This medicine is tolerated well by most people with few side effects.
  • It is available in various dosage forms like tablets, capsules, liquid, dissolvable granules, and extended-release tablets for ease of use.
  • There are sugar-free versions of guaifenesin for diabetics (brand names Diabetic Siltussin DAS-Na and Diabetic Tussin Mucus Relief).

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  • Guaifenesin is an expectorant that is used to clear mucus. It does not work well for dry coughs. 
  • Taking guaifenesin is not safe for children younger than 4 years old.