Azithromycin vs Doxycycline

## Azithromycin vs Doxycycline: Overview

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

## Mechanism of Action

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

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

## Pharmacokinetics

**Half-life**: Azithromycin — 68 hours; Doxycycline — 18-22 hours.

## Chemical Properties

**Molecular Formula**: Azithromycin — C38H72N2O12; Doxycycline — C22H24N2O8.

**Molecular Weight**: Azithromycin — 748.9840 g/mol; Doxycycline — 444.4350 g/mol.

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