Atezolizumab vs Spironolactone

## Atezolizumab vs Spironolactone: Overview

This comparison examines the pharmacological differences between **Atezolizumab** and **Spironolactone**.

## Mechanism of Action

**Atezolizumab**: Fully human anti-PD-L1 IgG1 monoclonal antibody blocking PD-L1 interaction with PD-1 and B7.1.

**Spironolactone**: Mineralocorticoid receptor antagonist.

## Pharmacokinetics

**Half-life**: Atezolizumab — 27 days; Spironolactone — 1.4 hours.

## Chemical Properties

**Molecular Formula**: Atezolizumab — N/A; Spironolactone — C24H32O4S.

**Molecular Weight**: Atezolizumab — N/A; Spironolactone — 416.5740 g/mol.

**Type**: Atezolizumab — Antibody; Spironolactone — Small molecule.