Ipilimumab vs Methotrexate

## Ipilimumab vs Methotrexate: Overview

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

## Mechanism of Action

**Ipilimumab**: Fully human anti-CTLA-4 IgG1 monoclonal antibody that blocks CTLA-4 inhibitory signaling.

**Methotrexate**: Dihydrofolate reductase inhibitor.

## Pharmacokinetics

**Half-life**: Ipilimumab — 14.7 days; Methotrexate — 3-10 hours.

## Chemical Properties

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

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

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