Robafen

GUAIFENESIN treats cough and chest congestion. It works by thinning and loosening mucus, making it easier to clear from the head, throat, and lungs. It belongs to a group of medications called expectorants.

Get Robafen for as low as $3.42, which is 33% off the average retail price of $5.07 for the most common version, by using a GoodRx coupon.