Vigora 100 mg is a brand of sildenafil citrate, which is a drug firstly operated to use erectile dysfunction( ED) in men. Erectile dysfunction is a fettle depicted by the inadequacy to attain or save an construction sufficient for sexual exertion. Sildenafil citrate, the live component in Vigora and similarly in the well- known drug Viagra, belongs to a order of medications called phosphodiesterase like 5( PDE5) hands.