Ranitidine vs Rituximab

## Ranitidine vs Rituximab: Overview

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

## Mechanism of Action

**Ranitidine**: Competitive H2 receptor antagonist.

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

## Pharmacokinetics

**Half-life**: Ranitidine — 2-3 hours; Rituximab — 22 days.

## Chemical Properties

**Molecular Formula**: Ranitidine — C13H22N4O3S; Rituximab — N/A.

**Molecular Weight**: Ranitidine — 314.4050 g/mol; Rituximab — N/A.

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