Some H1 antihistaminic Drugs in Clinical Use

1st Generation Antihistamines:

Ethanolamjnes - Carbinoxamine (Clistin), Dimenhydrinate (salt of diphenhydramine)(Dramamine), Diphenhydramine (Benadryl, etc)

Piperazjne derivatives - Hydroxyzine (Atarax, etc), Cyclizine (Marezine), Meclizine (Bonine, etc)

Alkylamines - Brompheniramine (Dimetane, etc), Chlorpheniramine (Chlor-Trimeton, etc)

Phenothiazine derivative - Promethazine (Phenergan, etc)

Miscellaneous - Cyproheptadine (Periactin, etc)

2nd Generation Antihistamines:

Piperidine - Fexofenadine (Allegra, etc)

Miscellaneous - Loratadine (Claritin, etc), desloratadine (Clarinex) Cetirizine (Zyrtec, etc)



#antihistamines #classification #Pharmacology #classes #generation #h1