Evodiamine, rutaecarpine, limonin were purchased from Chengdu herbpurify CO., Ltd (Chengdu, China). Polyphyllin VII, polyphyllin E and gracillin were obtained from Sichuan Weikeqi Biological Technology Co., Ltd (Chengdu, China). Carbamazepine and oxcarbazepine were bought from TCI Chemical Industry Development Co., Ltd (Shanghai, China).

hecogenin (1), diosgenin (2), ruscogenin (3), gitogenin (4), tigogenin (5), solasodine (6), (24S,25S)-3β, 24-di-hydroxy-5α-spirostan (7), dracaenol C (8), 25(27)-dehydroruscogenin (9), (1β, 3β, 14α, 15α, 20R, 22S, 25R)-spirost-5-ene-tetrol (10), peimine (11), peiminine (12), peimisine (13), isoverticine (14), trillin (15), polyphyllin VI (16), polyphyllin VII (17), pallidifloside D (18), prosapogenin A (19), spongipregnoloside A (20), dioscin(21), solasonine (22), solamargine (23), gracillin (24), polyphyllin I(25), timosaponin BII (26), timosaponinA-III(27), ophiopogonin D (28), protobioside (29), (22S,25S)-26-O-β-d-glucopyranosyl-22,25-epoxyfurost-5-en-3β,26-diol-3-O-α-l-rha-mnopyranosyl(1 → 2)-β-d-gluc (30), pallidifloside E (31), parispseudoside (32), methylprotodioscin (33), protodioscin (34), pseudoprotodioscin (35), YS-IX (36), pallidifloside A (37), pallidifloside H (38), digoxin (39), bisdigoxigenin (40), 7β, 14α, 21-tri-hydroxy-diosgenin (41), 12β,14α,21-tri-hydroxy-diosgenin (42), and 11β,14α-di-hydroxyldiosgenin (43) were purchase from Sichuan weikeqi biotechnology company (Sichuan province, China). Pooled human liver microsomes (HLMs, 20 mg/mL) and pooled human primary hepatocytes were purchased from Rild Research Institute for LiverDiseases (Shanghai, China).