HYDRASTINE, (-)-B-(P) (AHP Verified) HYDRASTINE, (-)-B-(P) Hydrastine (base and/or unspecified salts) (1R,9S)-(-)-β-Hydrastine (3R)-6,7-Dimethoxy-3-[[(1R)-1,2,3,4-tetrahydro-2-methyl-6,7-(methylenedioxy)isoquinoline]-1-yl]isobenzofuran-1(3H)-one [R,(-)]-6,7-Dimethoxy-3-[[(5R)-5,6,7,8-tetrahydro-6-methyl-1,3-dioxolo[4,5-g]isoquinoline]-5-yl]isobenzofuran-1(3H)-one (3S)-6,7-Dimethoxy-3-[(5R)-5,6,7,8-tetrahydro-6-methyl-1,3-dioxolo[4,5-g]isoquinolin-5-yl]-1(3H)-isobenzofuranone [S,(-)]-6,7-Dimethoxy-3-[(5R)-5,6,7,8-tetrahydro-6-methyl-1,3-dioxolo[4,5-g]isoquinolin-5-yl]isobenzofuran-1(3H)-one