Bupropion vs Tofacitinib

## Bupropion vs Tofacitinib: Overview

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

## Mechanism of Action

**Bupropion**: Norepinephrine-dopamine reuptake inhibitor (NDRI).

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

## Pharmacokinetics

**Half-life**: Bupropion — 21 hours; Tofacitinib — 3.2 hours.

## Chemical Properties

**Molecular Formula**: Bupropion — C13H18ClNO; Tofacitinib — C16H20N6O.

**Molecular Weight**: Bupropion — 239.7420 g/mol; Tofacitinib — 312.3700 g/mol.

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