Category:H2 antihistamines

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First Generation H1 Antihistamines Second Generation H1 Antihistamines (tend to cause less drowsiness)
 * Hydroxyzine hydrochloride (Atarax)
 * Chlorpheniramine (Chlortrimeton)
 * Doxepin hydrochloride (Sinequan)
 * Clemastine (Tavist)
 * Fexofenadine (Allegra)
 * Loratidine (Claritin)
 * Desloratidine - (Clarinex)
 * Desloratidine (Xyzal)
 * Ketotifen (Zaditor/Zaditen (in Europe)
 * Zaditor is only available in the US as eye drops;
 * Zaditen is available by prescription, but it must be obtained from a compounding pharmacy or from abroad.


 * Levocetirizine (Xyza)