Azithromycin vs Cephalexin

## Azithromycin vs Cephalexin: Overview

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

## Mechanism of Action

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

**Cephalexin**: First-generation cephalosporin inhibiting cell wall synthesis.

## Pharmacokinetics

**Half-life**: Azithromycin — 68 hours; Cephalexin — 0.5-1.2 hours.

## Chemical Properties

**Molecular Formula**: Azithromycin — C38H72N2O12; Cephalexin — C16H17N3O4S.

**Molecular Weight**: Azithromycin — 748.9840 g/mol; Cephalexin — 347.3890 g/mol.

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