Metoprolol vs Tofacitinib

## Metoprolol vs Tofacitinib: Overview

This comparison examines the pharmacological differences between **Metoprolol** and **Tofacitinib**.

## Mechanism of Action

**Metoprolol**: Selective beta-1 adrenergic receptor blocker.

**Tofacitinib**: Pan-JAK inhibitor with preference for JAK1 and JAK3 blocking pro-inflammatory cytokine signaling.

## Pharmacokinetics

**Half-life**: Metoprolol — 3-7 hours; Tofacitinib — 3.2 hours.

## Chemical Properties

**Molecular Formula**: Metoprolol — C15H25NO3; Tofacitinib — C16H20N6O.

**Molecular Weight**: Metoprolol — 267.3640 g/mol; Tofacitinib — 312.3700 g/mol.

**Type**: Metoprolol — Small molecule; Tofacitinib — Small molecule.