Robitussin Maximum Strength DM Day/Night Pack provides around-the-clock cough relief with two specialized formulas. The daytime formula (12 oz) contains dextromethorphan HBr and guaifenesin to control cough and relieve chest congestion without causing drowsiness. The nighttime formula (8 oz) combines dextromethorphan HBr with the antihistamine doxylamine succinate to suppress cough while relieving runny nose and sneezing to help you sleep. Both liquids feature a fresh berry flavor with strong soothing action.

The daytime cough suppressant and expectorant temporarily relieves cough due to minor throat and bronchial irritation as may occur with a cold, and helps loosen phlegm to make coughs more productive. The nighttime formula adds an antihistamine to address additional cold symptoms including runny nose, sneezing, itchy nose or throat, and itchy or watery eyes.

Daytime active ingredients per 20 mL: Dextromethorphan HBr USP 20 mg (cough suppressant), Guaifenesin USP 400 mg (expectorant). Nighttime active ingredients per 20 mL: Dextromethorphan HBr 20 mg (cough suppressant), Doxylamine Succinate USP 12.5 mg (antihistamine). Not for use in children under 12 years of age. Do not take more than 4 doses in any 24-hour period. Adults and children 12 years and over take 20 mL every 4 hours for daytime or do not use for nighttime.