Paroxetine vs Upadacitinib

## Paroxetine vs Upadacitinib: Overview

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

## Mechanism of Action

**Paroxetine**: Potent selective serotonin reuptake inhibitor with additional muscarinic and NE reuptake inhibition.

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

## Pharmacokinetics

**Half-life**: Paroxetine — 21 hours; Upadacitinib — 9-14 hours.

## Chemical Properties

**Molecular Formula**: Paroxetine — C19H20FNO3; Upadacitinib — C17H19F3N6O.

**Molecular Weight**: Paroxetine — 329.3730 g/mol; Upadacitinib — 380.3700 g/mol.

**Type**: Paroxetine — Small molecule; Upadacitinib — Small molecule.