<unk>  (Mizollen) is a once daily, non-sedating antihistamine. It blocks H1 receptors and is commonly fast-acting. It does not prevent the actual release of histamine from mast cells, just prevents it binding to receptors. Side effects can include dry mouth and throat.
Mizolastine
Seratrodast
Emedastine
Acrivastine
Clemastine
Azelastine 
Pentagastrin
Pemirolast