• certain diet
drugs like dexfenfluramine, fenfluramine, phentermine, sibutramine
• cisapride
• escitalopram
• MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
• nefazodone
• phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine
• procarbazine
• St.