Zhewitra 40 mg is a medication used to treat erectile dysfunction (ED) in men. It contains Vardenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. Vardenafil works by increasing blood flow to the penis during sexual stimulation, enabling men to achieve and maintain an erection. The usual recommended dose of Zhewitra is 40 mg, taken orally as needed, approximately 25 to 60 minutes before anticipated sexual activity. The dose may be adjusted based on individual response and tolerability, but it should not be taken more than once within a 24-hour period.