Captopril vs Doxycycline

Captopril vs Doxycycline: Overview

This comparison examines the pharmacological differences between Captopril and Doxycycline.

Mechanism of Action

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

Doxycycline: Inhibits bacterial protein synthesis by binding 30S ribosomal subunit.

Pharmacokinetics

Half-life: Captopril — 1.9 hours; Doxycycline — 18-22 hours.

Chemical Properties

Molecular Formula: Captopril — C9H15NO3S; Doxycycline — C22H24N2O8.

Molecular Weight: Captopril — 217.2850 g/mol; Doxycycline — 444.4350 g/mol.

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