Rituximab vs Tacrolimus

## Rituximab vs Tacrolimus: Overview

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

## Mechanism of Action

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

**Tacrolimus**: Calcineurin inhibitor binding FKBP12; suppresses IL-2 transcription.

## Pharmacokinetics

**Half-life**: Rituximab — 22 days; Tacrolimus — 12 hours.

## Chemical Properties

**Molecular Formula**: Rituximab — N/A; Tacrolimus — C44H69NO12.

**Molecular Weight**: Rituximab — N/A; Tacrolimus — 804.0180 g/mol.

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