Metronidazole vs Phenytoin

## Metronidazole vs Phenytoin: Overview

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

## Mechanism of Action

**Metronidazole**: Forms cytotoxic free radicals that damage bacterial DNA.

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

## Pharmacokinetics

**Half-life**: Metronidazole — 8 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Metronidazole — C6H9N3O3; Phenytoin — C15H12N2O2.

**Molecular Weight**: Metronidazole — 171.1540 g/mol; Phenytoin — 252.2680 g/mol.

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