highly significantP < .001
All values obtained were highly significant compared to the untreated control cells ( P < .001). 20 μ g/mL of 5-fluorouracil inhibited 83% and 71% of cell proliferation in A549 and DLA cells, respectively, whereas 10 μ g/mL of Doxorubicin inhibited 59% and 78% of cell proliferation in K562, and KB cells, respectively.