Synonyms: 13aa-Berbine, 2,3,9,10-tetramethoxy-(8CI);6H-Dibenzo[a,g]quinolizine, 5,8,13,13a-tetrahydro-2,3,9,10-tetramethoxy-,(S)-;Cyclanoline, O,O-dimethyl-N-demethyl- (6CI);Gindarine (7CI);(-)-2,3,9,10-Tetramethoxyberbine;(-)-Corydalis B;(-)-Rotundine;(-)-S-Tetrahydropalmatine;(S)-Tetrahydropalmatine;Caseanine;Hyndarine;N-Demethyl-O,O'-dimethylcyclanoline;N-Demethyl-O,O'-dimethylsteponine;Palmatine, tetrahydro-, (-)-;Rotundine;Rotundine (Stephania), (-)-;l-Tetrahydropalmatine;