Synonyms: 4H-Pyrimido[6,1-a]isoquinolin-4-one,2-[(2,4-dimethylphenyl)imino]-2,3,6,7-tetrahydro-9,10-dimethoxy-3,7-dimethyl-,monohydrochloride (9CI); 4H-Pyrimido[6,1-a]isoquinolin-4-one,2-[(2,4-dimethylphenyl)imino]-2,3,6,7-tetrahydro-9,10-dimethoxy-3,7-dimethyl-,monohydrochloride, (?à)-