Category:H1 antihistamines

This category contains articles about H1 antihistamines.

Sedating H1 antihistamines
First Generation H1 Antihistamines (sedating):
 * Chlorpheniramine (Chlortrimeton, Piriton)
 * Clemastine (Tavist)
 * Dexbrompheniramine (Ala Hist-IR)
 * Doxepin/Doxepin hydrochloride (Silenor, Sinequan)
 * Hydroxyzine/hydroxyzine hydrochloride (Atarax)
 * Levocetirizine (Xyza)
 * Promethazine (Phenergan)
 * Triprolidine (Histex, Vanaclear PD, Zymine)

Others:
 * Cyproheptadine (Periactin) - sedating H1 histamine antagonist and seratonin antagonist

Non-sedating H1 antihistamines
Second Generation H1 Antihistamines tend to cause less drowsiness.
 * Desloratidine - (Clarinex, Xyzal)
 * Fexofenadine (Allegra)
 * Ketotifen (Zaditor only available in the US as eye drops, Zaditen in Europe)
 * Loratadine (Claritin)

H2 non-sedating antihistamines

 * Cimetidine (Tagamet)
 * Famotidine (Pepcid)
 * Nizatidine (Axid AR)
 * Roxatidine (Zorprex)