The spasm of the sphincter of Oddi can be avoided.
D014670:Ampulla of Vater; D006801:Humans; D009019:Morphinans; D009266:Nalbuphine; D013035:Spasm / Q000517:prevention & control*; D009803:Sphincter of Oddi
D009019:Morphinans; D009266:Nalbuphine