Actively composed of Sildenafil citrate, both Viagra and Fildena are equally valid, with a massive difference in their prices. Viagra, undeniably, is the blockbuster drug for millions of men who have Erectile Dysfunction (ED). Available in the little blue pill, Viagra has been the most popular ED drug developed by Pfizer. The active drug of Viagra, Sildenafil Citrate, was first recommended for pulmonary arterial hypertension (PAH). However, scientists accidentally found that medicine has helped men achieve harder and durable erections, probably as a side effect. Since then, Pfizer commercialized Viagra as a product for the treatment of Erectile Dysfunction . On the other hand, the Fildena pill, available in purple pills, is a generic competitor to Viagra. It is nothing but one of the many generic versions of Generic Viagra, which also contains Sildenafil Citrate. So, who is the manufacturer of Fildena? It is Fortune Healthcare, a Pharmaceutical company located in India. Unlike