<unk>  is an antihistamine that is FDA approved for the treatment of runny nose, sneezing, itchy, watery eyes, itching of the nose or throat.   Common adverse reactions include xerostomia, headache, somnolence and fatigue.
Loratadine
Desloratadine
Azatadine
Rupatadine
Olopatadine 
Terfenadine
Tromantadine
Visnadine