title: Prophylaxis against unipolar depression.
mesh_terms: D000328:Adult; D000368:Aged; D000639:Amitriptyline / Q000627:therapeutic use; D003866:Depressive Disorder / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008094:Lithium / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D013997:Time Factors
chemical_list: D000639:Amitriptyline; D008094:Lithium