Lamotrigine vs Methotrexate

## Lamotrigine vs Methotrexate: Overview

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

## Mechanism of Action

**Lamotrigine**: Sodium channel blocker inhibiting glutamate release.

**Methotrexate**: Dihydrofolate reductase inhibitor.

## Pharmacokinetics

**Half-life**: Lamotrigine — 25 hours; Methotrexate — 3-10 hours.

## Chemical Properties

**Molecular Formula**: Lamotrigine — C9H7Cl2N5; Methotrexate — C20H22N8O5.

**Molecular Weight**: Lamotrigine — 256.0910 g/mol; Methotrexate — 454.4400 g/mol.

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