Azithromycin vs Cetirizine

## Azithromycin vs Cetirizine: Overview

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

## Mechanism of Action

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

**Cetirizine**: Second-generation H1 antihistamine.

## Pharmacokinetics

**Half-life**: Azithromycin — 68 hours; Cetirizine — 6.5-10 hours.

## Chemical Properties

**Molecular Formula**: Azithromycin — C38H72N2O12; Cetirizine — C21H25ClN2O3.

**Molecular Weight**: Azithromycin — 748.9840 g/mol; Cetirizine — 388.8900 g/mol.

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