title: Letter: Combined antidepressant medication.
mesh_terms: D000639:Amitriptyline / Q000097:blood / Q000627:therapeutic use*; D003863:Depression / Q000188:drug therapy*; D004357:Drug Synergism; D004359:Drug Therapy, Combination; D006801:Humans; D007520:Isocarboxazid / Q000627:therapeutic use*; D009638:Norepinephrine / Q000378:metabolism; D011984:Sensory Receptor Cells / Q000187:drug effects; D012701:Serotonin / Q000378:metabolism
chemical_list: D000639:Amitriptyline; D012701:Serotonin; D007520:Isocarboxazid; D009638:Norepinephrine