Azithromycin vs Captopril

## Azithromycin vs Captopril: Overview

This comparison examines the pharmacological differences between **Azithromycin** and **Captopril**.

## Mechanism of Action

**Azithromycin**: Binds 50S ribosomal subunit, inhibiting bacterial protein synthesis.

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

## Pharmacokinetics

**Half-life**: Azithromycin — 68 hours; Captopril — 1.9 hours.

## Chemical Properties

**Molecular Formula**: Azithromycin — C38H72N2O12; Captopril — C9H15NO3S.

**Molecular Weight**: Azithromycin — 748.9840 g/mol; Captopril — 217.2850 g/mol.

**Type**: Azithromycin — Small molecule; Captopril — Small molecule.