title: Depression resistant to tricyclic antidepressants.
mesh_terms: D000929:Antidepressive Agents, Tricyclic / Q000627:therapeutic use*; D003866:Depressive Disorder / Q000188:drug therapy*; D004359:Drug Therapy, Combination; D004361:Drug Tolerance; D006801:Humans; D008094:Lithium / Q000627:therapeutic use*
chemical_list: D000929:Antidepressive Agents, Tricyclic; D008094:Lithium