Fildena 100mg takes 40-60 minutes to reach the peak of erection. And the effect may last up to 4-6 hours long. It doesn't mean that you feel a hard erection continuously during this period. Instead of that, the effect slows down while time is passing. Fildena is the brand or trading name of sildenafil medicine, which works to treat erectile dysfunction in men. It is a generic medicine that can...