zenegra 50 has an active ingredient Sildenafil which is FDA-approved medicine made use of to deal with impotence issues in guys. After being introduced in 1998, Zenegra 50mg ended up being one of the most prominent treatments for impotence concerns. Zenegra 50mg is a fast-acting medication that can last up to four hrs. It works well for men at any age, despite how long the individual has actually been having problems obtaining and also keeping an erection.