title: Is oral tramadol a reasonable PRN analgesic?
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Herndon
authors.forename: Alexinna
authors.initials: A
authors.lastname: Johns
mesh_terms: D000284:Administration, Oral; D000701:Analgesics, Opioid / Q000627:therapeutic use*; D006801:Humans; D010146:Pain / Q000188:drug therapy*; D017450:Receptors, Opioid, mu / Q000187:drug effects; D014147:Tramadol / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D000701:Analgesics, Opioid; D017450:Receptors, Opioid, mu; D014147:Tramadol