Viagra is a cost-saving alternative to the world's best-selling erectile dysfunction medications. This little blue pill is synonymous with impotence treatments worldwide.Viagra (Sildenafil Citrate) is the most prescribed erectile dysfunction treatment in the world. This little blue pill has helped millions of men around the world treat their impotence for over a decade. Generic Viagra works by sending a rush of blood to the muscle tissues around the penis to produce a hard and long-lasting erection. Once aroused, Generic Viagra begins to activate helping the user reach and sustain a satisfying erection.