pentapiperium methylsulfate
noun
pen·ta·pi·per·i·um meth·yl·sul·fate
| \ ˌpent-ə-pī-ˈper-ē-əm-ˌmeth-əl-ˈsəl-ˌfāt
\
\
Medical Definition of pentapiperium methylsulfate
: a synthetic quaternary ammonium anticholinergic and antisecretory agent C20H33NO6S used especially in the treatment of peptic ulcer