<p>Zafirlukast should not be given to patients who have previously experienced hypersensitivity to the product or any of its ingredients. Zafirlukast is contraindicated in patients with a history of moderate or severe renal impairment. Zafirlukast is contraindicated in patients with hepatic impairment or cirrhosis; it has not been studied in patients with hepatitis or in long term studies of patients with cirrhosis. Zafirlukast is contraindicated in children under 7 years of age until safety information is available.</p>