Methotrexate vs Omeprazole

## Methotrexate vs Omeprazole: Overview

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

## Mechanism of Action

**Methotrexate**: Dihydrofolate reductase inhibitor.

**Omeprazole**: Proton pump inhibitor that irreversibly blocks H+/K+-ATPase.

## Pharmacokinetics

**Half-life**: Methotrexate — 3-10 hours; Omeprazole — 0.5-1 hour.

## Chemical Properties

**Molecular Formula**: Methotrexate — C20H22N8O5; Omeprazole — C17H19N3O3S.

**Molecular Weight**: Methotrexate — 454.4400 g/mol; Omeprazole — 345.4170 g/mol.

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