Olopatadine, an antihistamine, as well as anticholinergic and mast cell stabilizer, is used for the treatment of itching associated with allergic conjunctivitis (eye allergies). There is also a potential for Olopatadine to treat steroid rebound (red skin
Phenindamine Tartrate is an antihistamine and anticholinergic drug closely related to cyproheptadine. It is used to treat symptoms of the common cold and allergies, such as sneezing, itching, rashes, and hives.