Rituximab vs Upadacitinib

## Rituximab vs Upadacitinib: Overview

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

## Mechanism of Action

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

**Upadacitinib**: Selective JAK1 inhibitor reducing signaling from cytokines implicated in autoimmune diseases.

## Pharmacokinetics

**Half-life**: Rituximab — 22 days; Upadacitinib — 9-14 hours.

## Chemical Properties

**Molecular Formula**: Rituximab — N/A; Upadacitinib — C17H19F3N6O.

**Molecular Weight**: Rituximab — N/A; Upadacitinib — 380.3700 g/mol.

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