Loratadine vs Pembrolizumab

## Loratadine vs Pembrolizumab: Overview

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

## Mechanism of Action

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

**Pembrolizumab**: Anti-PD-1 monoclonal antibody restoring anti-tumor immunity.

## Pharmacokinetics

**Half-life**: Loratadine — 8 hours; Pembrolizumab — 26 days.

## Chemical Properties

**Molecular Formula**: Loratadine — C22H23ClN2O2; Pembrolizumab — N/A.

**Molecular Weight**: Loratadine — 382.8800 g/mol; Pembrolizumab — N/A.

**Type**: Loratadine — Small molecule; Pembrolizumab — Antibody.