Captopril vs Erlotinib

Captopril vs Erlotinib: Overview

This comparison examines the pharmacological differences between Captopril and Erlotinib.

Mechanism of Action

Captopril: First orally active ACE inhibitor; contains thiol group that binds zinc at ACE active site.

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

Pharmacokinetics

Half-life: Captopril — 1.9 hours; Erlotinib — 36 hours.

Chemical Properties

Molecular Formula: Captopril — C9H15NO3S; Erlotinib — C22H23N3O4.

Molecular Weight: Captopril — 217.2850 g/mol; Erlotinib — 393.4380 g/mol.

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