<unk>  is a histamine H1-receptor antagonist that is FDA approved for the treatment of seasonal allergic conjunctivitis..   Common adverse reactions include stinging and burning sensation in the eye and headache.
Levocabastine
Acrivastine
Clemastine
Bepotastine Besilate
Orciprenaline
Altretamine
Emedastine
Iotrolan