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A member asked:

Does robitussin dm (guaifenesin and dextromethorphan) contain antihistamine?

A doctor has provided 1 answer
Dr. John Chiu answered

No: Just a mucus thinner and a cough suppressant. In the future, you can just google the product and ascertain the ingredients on most drug products yourself.

Answered 1/25/2021

3.5k views

Thank

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I got pneumonia and doctor prescribed me robitussin ac but not working much. Is it ok if I switched to Robitussin Dm (guaifenesin and dextromethorphan). What is the difference in dm n a?

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A member asked:

Bronchitis? Been coughing very frequently for the past 2 weeks. Nose is not stuffy but cough has mucus. Robitussin DM (guaifenesin and dextromethorphan) makes it better. Why the cough?

A doctor has provided 1 answer

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