What is Chlorphen (chlorpheniramine)?
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. Chlorpheniramine is used to treat sneezing, itching, watery eyes, and runny nose caused by allergies or the common cold. Chlorpheniramine may also be used for other purposes not listed in this medication guide.