Fildena 100 mg tablets contain generic Viagra used to treat erectile dysfunction problems in men. It contains sildenafil, an active ingredient that is an FDA-approved drug. It is a fast-acting medication that can last up to four hours. Impotence is a condition in which a man is incapable of attaining and continuing a satisfactory erection during sexual intercourse. More Ed Pills: Fildena Double 200 | Fildena 150 mg