A tale of three mimickers: Amitraz, fipronil, and 2,4-dichlorophenoxyacetic acid poisoning confounding organophosphate toxicity.

Organophosphates (OP) and carbamates frequently cause acute poisoning worldwide via acetylcholinesterase inhibition, leading to characteristic cholinergic toxidrome manifestations. However, some agents such as Amitraz, Fipronil, and 2,4-dichlorophenoxyacetic acid act through different mechanisms yet clinically mimic OP poisoning, complicating diagnosis and management. This case series presents three patients exposed to these mimickers, highlighting differing clinical features, investigations, and management strategies. Recognizing these pesticide mimickers is critical to avoid inappropriate therapy and optimize outcomes.