Cold and Cough Relief Foster & Thrive 20 mg; 400 mg / 20 mL Strength Liquid 4 oz.
Foster & Thrive Adult Tussin DM Max helps loosen phlegm (mucus) and thin bronchial secretions to drain bronchial tubes; it temporarily relieves cough due to minor throat and bronchial irritation as may occur with a cold
In each 20 mL dose there are 20 mg dextromethorphan HBr, USP and 400 mg guaifenesin, USP 
Compare to active ingredients in Robitussin Maximum Strength Cough + Chest Congestion DM – a registered trademark of Haleon
Dextromethorphan relieves cough by acting directly on the cough center in the brain
Guaifenesin thins the mucus or phlegm in the upper respiratory system
Bottle contains 4 ounces of raspberry- and menthol-flavor cough syrup

 Brand: McKesson Brand