Guaifenesin-Dextromethorphan

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

Last Reviewed: May 25, 2023

Pros & Cons


Dextromethorphan-Guaifenesin Pros and Cons

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  • This medication is well tolerated with few side effects.
  • It is available over the counter.
  • The combination of dextromethorphan and guaifenesin is available in various dosage forms for convenience, including capsules, tablets, syrup, oral solution, and dissolvable granules.
  • There are sugar-free versions for people with diabetes.

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  • Dextromethorphan and guaifenesin are for short-term treatment of cough. You cannot use this medicine to treat chronic cough, such as smoker’s cough, or cough and chest congestion caused by chronic lung conditions.
  • This medicine is sold from behind the counter in many places.
  • Other drugs can affect dextromethorphan and guaifenesin and cause serious adverse effects.
  • Dextromethorphan and guaifenesin are present in many cough or cold medicines. You need to check the label of every cough or cold medicine carefully to ensure you do not take more than the recommended maximum dose.