Zhewitra 40 mg is a medication containing vardenafil as the active ingredient. Vardenafil is a phosphodiesterase type 5 (PDE5) inhibitor primarily used to treat erectile dysfunction (ED) in men. Zhewitra 40 mg is a higher dosage strength compared to Zhewitra 20 mg, providing a more potent effect. Zhewitra 40 mg is indicated for the treatment of erectile dysfunction (impotence) in men, which is the inability to achieve or maintain an erection sufficient for satisfactory sexual performance. Zhewitra 40 mg tablets contain 40 milligrams of vardenafil as the active ingredient. The typical recommended dosage is one tablet taken orally as needed, approximately 25 to 60 minutes before sexual activity. The effects of Zhewitra 40 mg can last for up to 4 to 6 hours after dosing.