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HardEmergency MedicineSerotonin syndromeus-abemus-usmle-step-2us-usmle-step-3

A 32-year-old woman with a history of depression treated with sertraline presents with fever, confusion, muscle rigidity, hyperreflexia, and clonus after her medication was increased and she started taking an over-the-counter cough medicine containing dextromethorphan. What is the most likely diagnosis?

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