Histapyrrodine This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Histapyrrodine".
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Histapyrrodine is an antihistamine with anticholinergic properties.
Alkylamine (Acrivastine)
Tricyclic (Olopatadine)
Piperazine (Levocetirizine, Cetirizine)