Metronidazole vs Ondansetron

## Metronidazole vs Ondansetron: Overview

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

## Mechanism of Action

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

**Ondansetron**: Selective 5-HT3 receptor antagonist.

## Pharmacokinetics

**Half-life**: Metronidazole — 8 hours; Ondansetron — 3-5 hours.

## Chemical Properties

**Molecular Formula**: Metronidazole — C6H9N3O3; Ondansetron — C18H19N3O.

**Molecular Weight**: Metronidazole — 171.1540 g/mol; Ondansetron — 293.3660 g/mol.

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