Table 1.

IC₅₀ values of shikonin, 5-FU, HEDMNQ, and HHDMNQ in lung cancer cells.

Cell name	Shikonin (μM)	5-FU (μM)	HEDMNQ (μM)	HHDMNQ (μM)
A549	52.83 ± 2.02	52.83 ± 2.02	10.91 ± 1.22	5.62 ± 2.16
NCI-H23	71.55 ± 2.35	69.31 ± 3.39	14.78 ± 2.31	6.62 ± 1.65
NCI-H460	79.19 ± 2.12	74.14 ± 1.84	14.22 ± 2.06	9.07 ± 1.38