Synonyms : Azupharma Brand of Pirenzepine Dihydrochloride, Boehringer Ingelheim Brand of Pirenzepine Dihydrochloride, Dolorgiet Brand of Pirenzepine Dihydrochloride, Gastrotsepin, Gastrozepin, L-S 519, LS-519, Piren-basan, Pirenzepin, Pirenzepin-ratiopharm, Pyrenzepine