Gefitinib vs Niacin
## Gefitinib vs Niacin: Overview
This comparison examines the pharmacological differences between **Gefitinib** and **Niacin**.
## Mechanism of Action
**Gefitinib**: Selective reversible inhibitor of EGFR tyrosine kinase.
## Pharmacokinetics
**Half-life**: Gefitinib — 48 hours; Niacin — N/A.
## Chemical Properties
**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Niacin — N/A.
**Molecular Weight**: Gefitinib — 446.9000 g/mol; Niacin — N/A.
**Type**: Gefitinib — Small molecule; Niacin — Small molecule.