Diazepam vs Phenytoin

## Diazepam vs Phenytoin: Overview

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

## Mechanism of Action

**Diazepam**: Positive allosteric modulator of GABA-A receptors.

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

## Pharmacokinetics

**Half-life**: Diazepam — 20-100 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Diazepam — C16H13ClN2O; Phenytoin — C15H12N2O2.

**Molecular Weight**: Diazepam — 284.7400 g/mol; Phenytoin — 252.2680 g/mol.

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