Question

A 24-year-old woman presents to the outpatient psychiatry clinic complaining of persistent sadness, fatigue, and lack of motivation for the past month. She reports sleeping up to 14 hours a day, an increased appetite with a 4 kg (8.8 lb) weight gain, and difficulty concentrating at work. Medical history is unremarkable, and she does not use illicit substances. During the interview, she mentions that two years ago, she experienced a distinct 6-day period where she felt exceptionally energetic and creative. During that time, she slept only 2 hours a night without feeling tired, spoke much faster than usual, and impulsively booked an expensive vacation she could not afford. Her symptoms during that period did not require hospitalization and resolved spontaneously. If initiated as monotherapy for her current presentation, which of the following medications is most likely to precipitate an adverse psychiatric outcome?