BUTILHIOSCINA (butilescopolamina, butilbromure of escopolamina, N-butilhioscina) is an Spasmolitic, composed by Quaternarium Ammonium , semi-sintetic derivated from escopolamina. It's indicated for the treatment of spastic pain i the Digestive System, such as acalasia, gastric & duodenal ulcera. answer posted by: Alvaro Silva http://www.facmed.unam.mx/bmnd/gi_2k8/prods/PRODS/Butilhioscina.htm