Colistin vs Pembrolizumab
## Colistin vs Pembrolizumab: Overview
This comparison examines the pharmacological differences between **Colistin** and **Pembrolizumab**.
## Mechanism of Action
**Pembrolizumab**: Anti-PD-1 monoclonal antibody restoring anti-tumor immunity.
## Pharmacokinetics
**Half-life**: Colistin — N/A; Pembrolizumab — 26 days.
## Chemical Properties
**Type**: Colistin — Unknown; Pembrolizumab — Antibody.