RT Journal Article SR Electronic T1 Buscopan JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 39 OP 40 DO 10.1136/dtb.1.10.39 VO 1 IS 10 YR 1963 UL http://dtb.bmj.com/content/1/10/39.abstract AB Hyoscine butylbromide (Buscopan - Boehringer Ingelheim) is a quaternary amine which has been claimed to be effective against smooth muscle spasm in the gut, biliary tract and urogenital tract. In recent months it has again been promoted for the treatment of dysmenorrhoea.