Gefitinib vs Zolpidem
## Gefitinib vs Zolpidem: Overview
This comparison examines the pharmacological differences between **Gefitinib** and **Zolpidem**.
## Mechanism of Action
**Gefitinib**: Selective reversible inhibitor of EGFR tyrosine kinase.
**Zolpidem**: Selective GABA-A receptor alpha-1 subunit agonist.
## Pharmacokinetics
**Half-life**: Gefitinib — 48 hours; Zolpidem — 2.5 hours.
## Chemical Properties
**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Zolpidem — C19H21N3O.
**Molecular Weight**: Gefitinib — 446.9000 g/mol; Zolpidem — 307.3950 g/mol.
**Type**: Gefitinib — Small molecule; Zolpidem — Small molecule.