1-(3,4-diethoxybenzylidene)-6,7-diethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride;1-[(3,4-Diethoxyphenyl)methylene]-6,7-diethoxy-1,2,3,4-tetrahydroisoquinoline Hydrochloride; Isodihydroperparine Hydrochloride; NOSH-BRA; No-Spa; No-Spa Hydrochloride; Tetraspasmin-Lefa;Drotaverine Hydrochloride
