Cephalexin vs Tofacitinib

## Cephalexin vs Tofacitinib: Overview

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

## Mechanism of Action

**Cephalexin**: First-generation cephalosporin inhibiting cell wall synthesis.

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

## Pharmacokinetics

**Half-life**: Cephalexin — 0.5-1.2 hours; Tofacitinib — 3.2 hours.

## Chemical Properties

**Molecular Formula**: Cephalexin — C16H17N3O4S; Tofacitinib — C16H20N6O.

**Molecular Weight**: Cephalexin — 347.3890 g/mol; Tofacitinib — 312.3700 g/mol.

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