Metformin vs Pembrolizumab

## Metformin vs Pembrolizumab: Overview

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

## Mechanism of Action

**Metformin**: Activates AMP-activated protein kinase, decreasing hepatic glucose production.

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

## Pharmacokinetics

**Half-life**: Metformin — 4-9 hours; Pembrolizumab — 26 days.

## Chemical Properties

**Molecular Formula**: Metformin — C4H11N5; Pembrolizumab — N/A.

**Molecular Weight**: Metformin — 129.1640 g/mol; Pembrolizumab — N/A.

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