Atezolizumab vs Tacrolimus

## Atezolizumab vs Tacrolimus: Overview

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

## Mechanism of Action

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

**Tacrolimus**: Calcineurin inhibitor binding FKBP12; suppresses IL-2 transcription.

## Pharmacokinetics

**Half-life**: Atezolizumab — 27 days; Tacrolimus — 12 hours.

## Chemical Properties

**Molecular Formula**: Atezolizumab — N/A; Tacrolimus — C44H69NO12.

**Molecular Weight**: Atezolizumab — N/A; Tacrolimus — 804.0180 g/mol.

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