Skip to main content

MP 423 (Guaifenesin LA 600 mg)

Generic Name: guaifenesin

Pill with imprint MP 423 is Green, Elliptical/Oval and has been identified as Guaifenesin LA 600 mg. It is supplied by United Research Laboratories/Mutual Pharmaceutical Company.

Guaifenesin LA is used in the treatment of bronchitis; bronchiectasis; cough and belongs to the drug class expectorants. Risk cannot be ruled out during pregnancy. Guaifenesin LA 600 mg is not a controlled substance under the Controlled Substances Act (CSA).

Images for MP 423

Guaifenesin LA 600 mg MP 423

Guaifenesin LA

Generic Name
MP 423
600 mg
Rx and/or OTC
Drug Class
Pregnancy Category
C - Risk cannot be ruled out
CSA Schedule
Not a controlled drug
Labeler / Supplier
United Research Laboratories/Mutual Pharmaceutical Company
National Drug Code (NDC)
53489-0423 (Discontinued)

Get help with Imprint Code FAQs.

More about Guaifenesin LA (guaifenesin)

Patient resources

Other brands
Mucinex, Robitussin Chest Congestion, Robafen, Mucus Relief, ... +17 more

Professional resources

Related treatment guides

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.