Fentanyl vs Levodopa

## Fentanyl vs Levodopa: Overview

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

## Mechanism of Action

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

**Levodopa**: Metabolic precursor of dopamine that crosses the BBB.

## Pharmacokinetics

**Half-life**: Fentanyl — 2-4 hours; Levodopa — 1.5 hours.

## Chemical Properties

**Molecular Formula**: Fentanyl — C22H28N2O; Levodopa — C9H11NO4.

**Molecular Weight**: Fentanyl — 336.4700 g/mol; Levodopa — 197.1880 g/mol.

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