Atezolizumab vs Loratadine

## Atezolizumab vs Loratadine: Overview

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

## Mechanism of Action

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

**Loratadine**: Second-generation H1 antihistamine with minimal CNS effects.

## Pharmacokinetics

**Half-life**: Atezolizumab — 27 days; Loratadine — 8 hours.

## Chemical Properties

**Molecular Formula**: Atezolizumab — N/A; Loratadine — C22H23ClN2O2.

**Molecular Weight**: Atezolizumab — N/A; Loratadine — 382.8800 g/mol.

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