Skip to main content

Guaifenesin ER

Generic Mucinex
Guaifenesin ER

Check your prescription details

Choose pharmacy

About guaifenesin ER

prescription bottle
DEXTROMETHORPHAN; GUAIFENESIN treats the symptoms of the common cold, allergies, or flu. It works by reducing cough and loosening mucus. It is a combination of a cough suppressant and an expectorant.

Get Guaifenesin ER for as low as $3.71, which is 76% off the average retail price of $15.66 for the most common version, by using a GoodRx coupon.

Other Expectorants

Related conditions

Cough

Browse medications

View All
Research prescriptions and over-the-counter medications from A to Z, compare drug prices, and start saving.
ABCDEFGHIJKLMNOPQRSTUVWXYZ