<unk> , sold under the brand name Zaditor among others, is a second-generation noncompetitive H1-antihistamine and mast cell stabilizer. It is most commonly sold as a salt with fumaric acid,<unk>  fumarate, and is available in two forms. In its ophthalmic form, it is used to treat allergic conjunctivitis. In its oral form, it is used to prevent asthma attacks or anaphylaxis, as well as various mast cell, allergic-type disorders. It was patented in 1970 and came into medical use in 1976.
Ketotifen
Drupanol
Epiestriol
Lorcaserin
Roxatidine acetate
Viltolarsen
Eluxadoline
Lumasiran