Synonyms: Benzo[g]-1,3-benzodioxolo[5,6-a]quinolizinium,5,6-dihydro-9,10-dimethoxy-, chloride, dihydrate (9CI); Berbinium,7,8,13,13a-tetradehydro-9,10-dimethoxy-2,3-(methylenedioxy)-, chloride,dihydrate (8CI); Berberine chloride dihydrate; Berberine hydrochloridebihydrate