Atezolizumab vs Ritonavir
## Atezolizumab vs Ritonavir: Overview
This comparison examines the pharmacological differences between **Atezolizumab** and **Ritonavir**.
## Mechanism of Action
**Atezolizumab**: Fully human anti-PD-L1 IgG1 monoclonal antibody blocking PD-L1 interaction with PD-1 and B7.1.
## Pharmacokinetics
**Half-life**: Atezolizumab — 27 days; Ritonavir — N/A.
## Chemical Properties
**Type**: Atezolizumab — Antibody; Ritonavir — Small molecule.