Cyproheptadine is a potent competitive antagonist of both serotonin and histamine receptors.[L32474] It is used primarily to treat allergic symptoms, though it is perhaps more notable for its use in appetite stimulation[L32519] and its off-label use in the tr…

Ketotifen is a benzocycloheptathiophene derivative[A231204] with potent antihistaminic and mast cell stabilizing properties. It has a similar structure to some other first-generation antihistamines such as [cyproheptadine] and [azatadine].[A231204] Ketotif…

Pizotifen belongs to the class of antamines and is related to [cyproheptadine].[A32532] It is a potent serotonin and tryptamine antagonist that has been used for migraine prevention for many years. It exhibits weak anticholinergic, antihistamine, and antikini…