Zhewitra 40 mg is a vardenafil‑based tablet used to treat erectile dysfunction (ED) in adult men. It contains 40 mg of vardenafil, a phosphodiesterase‑5 (PDE‑5) inhibitor that relaxes the smooth muscle in the blood vessels of the penis, increasing blood flow during sexual arousal so men can achieve and maintain a firmer, more lasting erection for about 4–5 hours in many cases. Zhewitra 40 mg is usually taken once per day, about 30–60 minutes before sexual activity, with or without food, and should not be used more than once in 24 hours.

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