Aspirin vs Metronidazole

## Aspirin vs Metronidazole: Overview

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

## Mechanism of Action

**Aspirin**: Irreversibly inhibits cyclooxygenase-1 and -2.

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

## Pharmacokinetics

**Half-life**: Aspirin — 2-3 hours; Metronidazole — 8 hours.

## Chemical Properties

**Molecular Formula**: Aspirin — C9H8O4; Metronidazole — C6H9N3O3.

**Molecular Weight**: Aspirin — 180.1580 g/mol; Metronidazole — 171.1540 g/mol.

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