Methotrexate vs Morphine

## Methotrexate vs Morphine: Overview

This comparison examines the pharmacological differences between **Methotrexate** and **Morphine**.

## Mechanism of Action

**Methotrexate**: Dihydrofolate reductase inhibitor.

**Morphine**: Mu-opioid receptor agonist.

## Pharmacokinetics

**Half-life**: Methotrexate — 3-10 hours; Morphine — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Methotrexate — C20H22N8O5; Morphine — C17H19NO3.

**Molecular Weight**: Methotrexate — 454.4400 g/mol; Morphine — 285.3380 g/mol.

**Type**: Methotrexate — Small molecule; Morphine — Small molecule.