title: Trazodone and intractable headaches.
mesh_terms: D000328:Adult; D005260:Female; D006261:Headache / Q000188:drug therapy*; D006801:Humans; D010148:Intractable Pain / Q000188:drug therapy*; D010879:Piperazines / Q000627:therapeutic use*; D014196:Trazodone / Q000627:therapeutic use*
chemical_list: D010879:Piperazines; D014196:Trazodone