Cephalexin vs Rituximab

## Cephalexin vs Rituximab: Overview

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

## Mechanism of Action

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

**Rituximab**: Chimeric anti-CD20 IgG1 monoclonal antibody inducing B-cell depletion via CDC, ADCC, and apoptosis.

## Pharmacokinetics

**Half-life**: Cephalexin — 0.5-1.2 hours; Rituximab — 22 days.

## Chemical Properties

**Molecular Formula**: Cephalexin — C16H17N3O4S; Rituximab — N/A.

**Molecular Weight**: Cephalexin — 347.3890 g/mol; Rituximab — N/A.

**Type**: Cephalexin — Small molecule; Rituximab — Antibody.