title: Added morphine may spoil unilateral spinal block.
authors.forename: Marc E
authors.initials: ME
authors.lastname: Gentili
mesh_terms: D000701:Analgesics, Opioid / Q000008:administration & dosage*; D000775:Anesthesia, Spinal / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage*; D002045:Bupivacaine / Q000008:administration & dosage*; D004338:Drug Combinations; D006801:Humans; D009020:Morphine / Q000008:administration & dosage*
chemical_list: D000701:Analgesics, Opioid; D000779:Anesthetics, Local; D004338:Drug Combinations; D009020:Morphine; D002045:Bupivacaine