Fentanyl vs Trazodone

## Fentanyl vs Trazodone: Overview

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

## Mechanism of Action

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

**Trazodone**: Serotonin antagonist and reuptake inhibitor (SARI).

## Pharmacokinetics

**Half-life**: Fentanyl — 2-4 hours; Trazodone — 5-9 hours.

## Chemical Properties

**Molecular Formula**: Fentanyl — C22H28N2O; Trazodone — C19H22ClN5O.

**Molecular Weight**: Fentanyl — 336.4700 g/mol; Trazodone — 371.8640 g/mol.

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