What is Vicks 44 Cough Medicine (dextromethorphan)?
Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex. Dextromethorphan is used to treat a cough. Dextromethorphan will not treat a cough that is caused by smoking, asthma, or emphysema. Dextromethorphan may also be used for other purposes not listed in this medication guide.