Cyclosporine vs Erlotinib

## Cyclosporine vs Erlotinib: Overview

This comparison examines the pharmacological differences between **Cyclosporine** and **Erlotinib**.

## Mechanism of Action

**Cyclosporine**: Calcineurin inhibitor suppressing T-cell activation.

**Erlotinib**: Reversible inhibitor of EGFR (HER1) tyrosine kinase, blocking autophosphorylation.

## Pharmacokinetics

**Half-life**: Cyclosporine — 6-12 hours; Erlotinib — 36 hours.

## Chemical Properties

**Molecular Formula**: Cyclosporine — C62H111N11O12; Erlotinib — C22H23N3O4.

**Molecular Weight**: Cyclosporine — 1202.6100 g/mol; Erlotinib — 393.4380 g/mol.

**Type**: Cyclosporine — Protein; Erlotinib — Small molecule.