Loratadine vs Upadacitinib

## Loratadine vs Upadacitinib: Overview

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

## Mechanism of Action

**Loratadine**: Second-generation H1 antihistamine with minimal CNS effects.

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

## Pharmacokinetics

**Half-life**: Loratadine — 8 hours; Upadacitinib — 9-14 hours.

## Chemical Properties

**Molecular Formula**: Loratadine — C22H23ClN2O2; Upadacitinib — C17H19F3N6O.

**Molecular Weight**: Loratadine — 382.8800 g/mol; Upadacitinib — 380.3700 g/mol.

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