Gefitinib vs Trimethoprim

## Gefitinib vs Trimethoprim: Overview

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

## Mechanism of Action

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

**Trimethoprim**: Dihydrofolate reductase inhibitor (bacterial selective).

## Pharmacokinetics

**Half-life**: Gefitinib — 48 hours; Trimethoprim — 8-10 hours.

## Chemical Properties

**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Trimethoprim — C14H18N4O3.

**Molecular Weight**: Gefitinib — 446.9000 g/mol; Trimethoprim — 290.3180 g/mol.

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