title: Oral morphine is a prescription-only medicine.
authors.affiliation: Royal Victoria Infirmary, Newcastle upon Tyne, UK.
authors.forename: K
authors.initials: K
authors.lastname: Whitehouse
authors.forename: R
authors.initials: R
authors.lastname: Marr
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D003061:Codeine / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D048949:Labor Pain / Q000188:drug therapy*; D010149:Postoperative Pain / Q000188:drug therapy*; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects
chemical_list: D000701:Analgesics, Opioid; D003061:Codeine