Guaifenesin Pros and Cons
- 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).
- 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.
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