Amoxicillin vs Cephalexin

## Amoxicillin vs Cephalexin: Overview

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

## Mechanism of Action

**Amoxicillin**: Inhibits bacterial cell wall synthesis by binding to PBPs.

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

## Pharmacokinetics

**Half-life**: Amoxicillin — 1-1.5 hours; Cephalexin — 0.5-1.2 hours.

## Chemical Properties

**Molecular Formula**: Amoxicillin — C16H19N3O5S; Cephalexin — C16H17N3O4S.

**Molecular Weight**: Amoxicillin — 365.4050 g/mol; Cephalexin — 347.3890 g/mol.

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