Imatinib vs Tofacitinib

## Imatinib vs Tofacitinib: Overview

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

## Mechanism of Action

**Imatinib**: Selective inhibitor of BCR-ABL, c-Kit, and PDGFR tyrosine kinases.

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

## Pharmacokinetics

**Half-life**: Imatinib — 18 hours; Tofacitinib — 3.2 hours.

## Chemical Properties

**Molecular Formula**: Imatinib — C29H31N7O; Tofacitinib — C16H20N6O.

**Molecular Weight**: Imatinib — 493.6030 g/mol; Tofacitinib — 312.3700 g/mol.

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