Doxycycline vs Rituximab

## Doxycycline vs Rituximab: Overview

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

## Mechanism of Action

**Doxycycline**: Inhibits bacterial protein synthesis by binding 30S ribosomal subunit.

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

## Pharmacokinetics

**Half-life**: Doxycycline — 18-22 hours; Rituximab — 22 days.

## Chemical Properties

**Molecular Formula**: Doxycycline — C22H24N2O8; Rituximab — N/A.

**Molecular Weight**: Doxycycline — 444.4350 g/mol; Rituximab — N/A.

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