Zhewitra 20 mg is a medication used to treat erectile dysfunction (ED) in men. It contains Vardenafil, which is a PDE5 inhibitor similar to other ED treatments like sildenafil (Viagra) and tadalafil (Cialis). Zhewitra works by increasing blood flow to the penis during sexual arousal, helping men achieve and maintain an erection. Vardenafil is a PDE5 inhibitor, which means it blocks the enzyme phosphodiesterase type 5. This enzyme can constrict blood vessels in the penis and restrict blood flow, so by inhibiting it, Zhewitra allows the blood vessels to relax and blood to flow more freely into the penis, resulting in an erection when sexually stimulated. https://www.flatmeds.com/product/zhewitra-20-mg/