There’s no question that Viagra is among the most well liked anti-impotence drugs that save sexual reputation of numerous men everyday. Definitely, the creation of Sildenafil Citrate, better known as Viagra, was the real breakthrough, which made it possible for those men, that are suffering from erectile dysfunction, heave a sigh of relief, being sure of the quality of their erection after the drug intake.The truth is that male impotence is one of the most typical difficulties, which can be caused by ageing process, physical or mental conditions.