Erlotinib vs Imatinib

Erlotinib vs Imatinib: Overview

This comparison examines the pharmacological differences between Erlotinib and Imatinib.

Mechanism of Action

Erlotinib: Reversible inhibitor of EGFR (HER1) tyrosine kinase, blocking autophosphorylation.

Imatinib: Selective inhibitor of BCR-ABL, c-Kit, and PDGFR tyrosine kinases.

Pharmacokinetics

Half-life: Erlotinib — 36 hours; Imatinib — 18 hours.

Chemical Properties

Molecular Formula: Erlotinib — C22H23N3O4; Imatinib — C29H31N7O.

Molecular Weight: Erlotinib — 393.4380 g/mol; Imatinib — 493.6030 g/mol.

Type: Erlotinib — Small molecule; Imatinib — Small molecule.