Fentanyl vs Methotrexate

Fentanyl vs Methotrexate: Overview

This comparison examines the pharmacological differences between Fentanyl and Methotrexate.

Mechanism of Action

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

Methotrexate: Dihydrofolate reductase inhibitor.

Pharmacokinetics

Half-life: Fentanyl — 2-4 hours; Methotrexate — 3-10 hours.

Chemical Properties

Molecular Formula: Fentanyl — C22H28N2O; Methotrexate — C20H22N8O5.

Molecular Weight: Fentanyl — 336.4700 g/mol; Methotrexate — 454.4400 g/mol.

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