PM 400 (Fenesin IR 400 mg)
Generic Name: guaifenesin
Pill imprint PM 400 has been identified as Fenesin IR 400 mg.
Fenesin IR is used in the treatment of bronchitis; cough; bronchiectasis and belongs to the drug class expectorants. Risk cannot be ruled out during pregnancy. Fenesin IR 400 mg is not a controlled substance under the Controlled Substance Act (CSA).
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