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Toxicology · Emergency medicine

Toxidromes: recognizing patterns in poisoning

Hoang Bao Tran Van · September 29, 2026

How to recognize the five major toxidromes (cholinergic, anticholinergic, sympathomimetic, sedative-hypnotic and opioid) from mental status, vital signs, pupils, skin, bowel sounds and neuromuscular findings, with the first-line treatment for each.

Shared for education, with credit to Hoang Bao Tran Van. Not medical advice.