Duloxetine vs Fentanyl

## Duloxetine vs Fentanyl: Overview

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

## Mechanism of Action

**Duloxetine**: Serotonin-norepinephrine reuptake inhibitor (SNRI).

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

## Pharmacokinetics

**Half-life**: Duloxetine — 12 hours; Fentanyl — 2-4 hours.

## Chemical Properties

**Molecular Formula**: Duloxetine — C18H19NOS; Fentanyl — C22H28N2O.

**Molecular Weight**: Duloxetine — 297.4150 g/mol; Fentanyl — 336.4700 g/mol.

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