Brompheniramine relieves red, irritated, itchy, watery eyes; sneezing; and runny nose caused by allergies, hay fever, and the common cold. Brompheniramine helps control symptoms, but does not treat the cause of the symptoms or speed recovery. Brompheniramine should not be used to cause sleepiness in children. Brompheniramine is in a class of medications called antihistamines. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms.
Chlorpheniramine relieves red, itchy, watery eyes; sneezing; itchy nose or throat; and runny nose caused by allergies, hay fever, and the common cold. Chlorpheniramine helps control the symptoms of cold or allergies but will not treat the cause of the symptoms or speed recovery. Chlorpheniramine is in a class of medications called antihistamines. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms.