Skip to Content

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

More info Print Imprint Search

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date, and complete, but no guarantee is made to that effect. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 2017, National Library of Medicine, Truven Health Analytics and Cerner Multum, Inc. All Rights Reserved.