Gefitinib vs Tacrolimus

## Gefitinib vs Tacrolimus: Overview

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

## Mechanism of Action

**Gefitinib**: Selective reversible inhibitor of EGFR tyrosine kinase.

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

## Pharmacokinetics

**Half-life**: Gefitinib — 48 hours; Tacrolimus — 12 hours.

## Chemical Properties

**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Tacrolimus — C44H69NO12.

**Molecular Weight**: Gefitinib — 446.9000 g/mol; Tacrolimus — 804.0180 g/mol.

**Type**: Gefitinib — Small molecule; Tacrolimus — Small molecule.