Chlorpheniramine
Chlorpheniramine is an antihistamine used to relieve allergic rhinitis (seasonal allergy) symptoms including sneezing, runny nose, itching, and watery eyes. It is also used to treat immediate allergic reactions. Chlorpheniramine is available in nonprescription products alone and in combination with other nonprescription drugs, to treat symptoms of allergy, colds, and upper respiratory infections.

Chlorpheniramine maleate has a strong anti-nauseal side effect which makes it helpful in treating motion sickness.

Chlorpheniramine maleate causes drowsiness in animals just as it does in people and can be used as a mild tranquilizer.  Some argue that it is the drowsiness side effect that makes this medication appear to be helpful in itch management (i.e. patients scratch less because they are sleeping more.)
 
Company Info
Novo-Pheniram
Novo-Pheniram 4mg - 100 tablets