Phenytoin vs Zolpidem

## Phenytoin vs Zolpidem: Overview

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

## Mechanism of Action

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

**Zolpidem**: Selective GABA-A receptor alpha-1 subunit agonist.

## Pharmacokinetics

**Half-life**: Phenytoin — 22 hours; Zolpidem — 2.5 hours.

## Chemical Properties

**Molecular Formula**: Phenytoin — C15H12N2O2; Zolpidem — C19H21N3O.

**Molecular Weight**: Phenytoin — 252.2680 g/mol; Zolpidem — 307.3950 g/mol.

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