Durvalumab vs Sildenafil

## Durvalumab vs Sildenafil: Overview

This comparison examines the pharmacological differences between **Durvalumab** and **Sildenafil**.

## Mechanism of Action

**Durvalumab**: Human IgG1 kappa anti-PD-L1 monoclonal antibody blocking PD-L1 binding to PD-1 and CD80.

**Sildenafil**: Selective PDE5 inhibitor increasing cGMP.

## Pharmacokinetics

**Half-life**: Durvalumab — 17 days; Sildenafil — 4 hours.

## Chemical Properties

**Molecular Formula**: Durvalumab — N/A; Sildenafil — C22H30N6O4S.

**Molecular Weight**: Durvalumab — N/A; Sildenafil — 474.5800 g/mol.

**Type**: Durvalumab — Antibody; Sildenafil — Small molecule.