KnowraDiphenhydramineLinked fromLinked fromThe 9 pages that link to Diphenhydramine, each with the reason it gives.All 9Broader topic 2Related 1Compared with 6AntihistamineBroader topic: It illustrates the sedating and anticholinergic effects associated with many older agents.Anticholinergic syndromeBroader topic: Overdose is a common medication-related cause of anticholinergic toxicity.