Promethazine+Dextromethorphan is used in the treatment of dry cough.

This is a combination of two medicines: Promethazine and Dextromethorphan which relieve dry cough. Dextromethorphan is a cough suppressant which relieves cough by reducing the activity of cough centre in the brain. Promethazine is an antiallergic which helps reduce cough associated with allergies by blocking the effects of a chemical messenger, histamine.

Stomach upset, Sleepiness