Chlorpheniramine is an antihistamine that reduces the natural chemical histamine in the
body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.
Hydrocodone is a narcotic cough suppressant.
The combination of chlorpheniramine and hydrocodone is used to treat runny or stuffy
nose, sneezing, and cough caused by the common cold or flu.
Chlorpheniramine and hydrocodone may also be used for other purposes not listed in this
medication guide.