Zhewitra 20mg Tablet is recommended for erectile dysfunction and impotency in males. It is helpful when there is a failure of maintaining an erection for the entire sexual act or if there is no erection at all. It is a potent drug and should not be taken more than the prescription. It will act only in the presence of sexual stimulation. Class and Mechanism of Action Zhewitra 20mg Tablet contains Vardenafil as the active ingredient. It is a PDE5 inhibitor. By inhibiting PDE5, it releases more of cGMP in the Corpus Cavernosum. An increased level of cGMP relaxes the smooth muscles and improves blood flow. The improved flood flow results in an effective erection that can last up to hours. For More Information: https://medzbuddy.com/product/zhewitra-20mg-vardenafil/