Topic overview

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The lesson organizes antidotes by the poison or drug involved, linking examples to their principal mechanisms. Acetaminophen overdose is treated with N-acetylcysteine, which replenishes hepatic glutathione and supports non-toxic metabolism of the harmful metabolite NAPQI; the source emphasizes the value of early administration. Other examples include naloxone for opioid toxicity, flumazenil for benzodiazepine overdose, and atropine with pralidoxime for organophosphate or carbamate poisoning. The broader topic also covers antidotes and reversal strategies for toxic alcohols, cyanide, carbon monoxide, methemoglobinemia, digoxin, and several medication overdoses. This preview introduces the poison–antidote framework; the full lesson develops the individual examples and their mechanisms.