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Second Generation Antihistamines - Albany St …

First generation antihistamines include brompheniramine, diphenhydramine, carbinoxamine, chlorpheniramine, and clemastine. These antihistamines all have anticholinergic properties, making sedation one of the major side effects.Second generation antihistamines include cetirizine hydrochloride (Zyrtec), loratadine …