Gemcitabine Hydrochloride is a potent inhibitor of DHFR enzyme (140 ±2.2 nM), Ribonucleotide reductase, DNA, DNA polymerase, dCMP, VEGF, VEGFR2, CD31, HIF-1α. Gemcitabine Hydrochloride exhibits the greatest inhibitory potency toward DHFR enzyme (IC50 = 140 ±2.2 nM).