Pembrolizumab vs Phenytoin

## Pembrolizumab vs Phenytoin: Overview

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

## Mechanism of Action

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

**Phenytoin**: Sodium channel blocker stabilizing inactive state.

## Pharmacokinetics

**Half-life**: Pembrolizumab — 26 days; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Pembrolizumab — N/A; Phenytoin — C15H12N2O2.

**Molecular Weight**: Pembrolizumab — N/A; Phenytoin — 252.2680 g/mol.

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