A 32-year-old woman presents to the emergency department wit…
A 32-year-old woman presents to the emergency department with confusion, agitation, and tremors. She reports recently starting a new medication, a selective serotonin reuptake inhibitor (SSRI), for depression, and has also been taking an over-the-counter cold medication containing dextromethorphan. On examination, the patient has hyperreflexia, clonus, and a slightly elevated body temperature. Given the recent changes in her medication regimen and her symptoms, what is the most likely diagnosis?