Synergistic growth inhibitory effects of Phyllanthus emblica and Terminalia bellerica extracts with conventional cytotoxic agents: Doxorubicin and cisplatin against human hepatocellular carcinoma and lung cancer cells

Table 1 IC₅₀ values of individual herbal extracts in human cancer cells and normal cells

Extract	IC50 value (&mgr;g/mL)
	A549b	HepG2b	Vero (Normal)
P. emblica	12.18 ± 5.83	30.47 ± 6.67	157.86 ± 14.90
T. bellerica	27.07 ± 2.19	82.39 ± 27.09	238.70 ± 8.45

Data are shown as mean ± SD from three separate experiments.

^bP < 0.01 represents the statistical significance between normal cell (Vero) and each cancer cell (A549 and HepG2).