Table 1. Evaluation of combination of HHT with curumin in U937 and raji cells (72 h treatment).

Drug combination	U937 cells		Raji cells
	IC 50 value	CI values	IC 50 value	CI values
Curumin (range 0 from 40 μM)	IC50 = 39.52 μM	–	IC50 = 19.79 μM	–
Curumin + 5 ng/mL HHT	IC50 = 7.14 μM	0.23	IC50 = 6.71 μM	0.59