Synonyms: Isoquinolinium,2-(3-dimethylaminopropyl)-2-ethyl-1,2,3,4-tetrahydro-, bromide methobromide(6CI); Isoquinolinium,2-ethyl-1,2,3,4-tetrahydro-2-[3-(trimethylammonio)propyl]-, dibromide (9CI);2-(3-Dimethylaminopropyl)-2-ethyl-1,2,3,4-tetrahydroisoquinolinium bromidemethobromide