Fentanyl vs Topiramate

## Fentanyl vs Topiramate: Overview

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

## Mechanism of Action

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

**Topiramate**: Multiple mechanisms: Na+ channel block, GABA enhancement, glutamate inhibition.

## Pharmacokinetics

**Half-life**: Fentanyl — 2-4 hours; Topiramate — 21 hours.

## Chemical Properties

**Molecular Formula**: Fentanyl — C22H28N2O; Topiramate — C12H21NO8S.

**Molecular Weight**: Fentanyl — 336.4700 g/mol; Topiramate — 339.3630 g/mol.

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