Methotrexate vs Nivolumab

## Methotrexate vs Nivolumab: Overview

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

## Mechanism of Action

**Methotrexate**: Dihydrofolate reductase inhibitor.

**Nivolumab**: Fully human anti-PD-1 IgG4 monoclonal antibody restoring T-cell anti-tumor activity.

## Pharmacokinetics

**Half-life**: Methotrexate — 3-10 hours; Nivolumab — 27 days.

## Chemical Properties

**Molecular Formula**: Methotrexate — C20H22N8O5; Nivolumab — N/A.

**Molecular Weight**: Methotrexate — 454.4400 g/mol; Nivolumab — N/A.

**Type**: Methotrexate — Small molecule; Nivolumab — Antibody.