title: For severe pain, self-medication on demand.
mesh_terms: D000700:Analgesics / Q000008:administration & dosage*; D006801:Humans; D010148:Intractable Pain / Q000188:drug therapy*; D010149:Postoperative Pain / Q000188:drug therapy*; D012651:Self Medication
chemical_list: D000700:Analgesics