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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).

Fenesin IR
Generic Name:
PM 400
400 mg
Rx and/or OTC
Drug Class:
Pregnancy Category:
C - Risk cannot be ruled out
CSA Schedule:
Not a controlled drug
Pharma Medica

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