gefitinib hydrochloride

Gefitinib hydrochloride (ZD1839 hydrochloride) is a potent and orally active EGFR tyrosine kinase inhibitor (EGFR-TKI) (IC 50 = 33 nM) that selectively inhibits EGF-stimulated tumor cell growth (IC 50 = 54 nM) and that blocks EGF-stimulated EGFR autophosphorylation in tumor cells. Gefitinib hydrochloride also induces autophagy, which has antitumour activity [1] [2].

Gefitinib N-oxide hydrochloride, an N-oxide derivative of Gefitinib, acts as an EGFR tyrosine kinase inhibitor. Demonstrating an IC50 range of 2-37 nM in NR6wtEGFR cells, it emphasizes its efficacy in inhibiting the enzymatic activity of EGFR [1] [2].