title: Butorphanol and biliary spasm.
mesh_terms: D000328:Adult; D001660:Biliary Tract Diseases / Q000139:chemically induced*; D002077:Butorphanol / Q000009:adverse effects*; D005260:Female; D006801:Humans; D009019:Morphinans / Q000009:adverse effects*; D009270:Naloxone / Q000627:therapeutic use; D013035:Spasm / Q000139:chemically induced
chemical_list: D009019:Morphinans; D009270:Naloxone; D002077:Butorphanol