Metformin vs Phenytoin

## Metformin vs Phenytoin: Overview

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

## Mechanism of Action

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

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

## Pharmacokinetics

**Half-life**: Metformin — 4-9 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Metformin — C4H11N5; Phenytoin — C15H12N2O2.

**Molecular Weight**: Metformin — 129.1640 g/mol; Phenytoin — 252.2680 g/mol.

**Type**: Metformin — Small molecule; Phenytoin — Small molecule.