Fentanyl vs Venlafaxine

Fentanyl vs Venlafaxine: Overview

This comparison examines the pharmacological differences between Fentanyl and Venlafaxine.

Mechanism of Action

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

Venlafaxine: Serotonin-norepinephrine reuptake inhibitor (SNRI).

Pharmacokinetics

Half-life: Fentanyl — 2-4 hours; Venlafaxine — 5 hours.

Chemical Properties

Molecular Formula: Fentanyl — C22H28N2O; Venlafaxine — C17H27NO2.

Molecular Weight: Fentanyl — 336.4700 g/mol; Venlafaxine — 277.4020 g/mol.

Type: Fentanyl — Small molecule; Venlafaxine — Small molecule.