Fentanyl vs Metronidazole

## Fentanyl vs Metronidazole: Overview

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

## Mechanism of Action

**Fentanyl**: Highly potent synthetic mu-opioid receptor agonist approximately 100 times more potent than morphine.

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

## Pharmacokinetics

**Half-life**: Fentanyl — 2-4 hours; Metronidazole — 8 hours.

## Chemical Properties

**Molecular Formula**: Fentanyl — C22H28N2O; Metronidazole — C6H9N3O3.

**Molecular Weight**: Fentanyl — 336.4700 g/mol; Metronidazole — 171.1540 g/mol.

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