The extract from Atractylodes lancea appears to be both the most potent and most selective against cholangiocarcinoma, whereas that from Zingiber officinal appears to be the most potent and most selective against HepG2.
The extract from Piper chaba (IC50 = 18.63 μg/ml, SI = 9.8) and Pra-Sa-Prao-Yhai recipe (IC50 = 20.99 μg/ml, SI = 12.5.) exhibited the most promising and most selective cytotoxic activity against Hep-2 cell line.