Fildena professional is famous medicine to treat erectile dysfunction in men. When there is insufficient blood flow to the penile area, ED problems occur. The erection of the penis takes place when it gets filled with blood. Fildena professional medicine helps blood to reach the penile organ. When you are sexually stimulated, the chemical name nitric oxide is released into the erectile tissues of the penis, improves the blood flow to the penile area, and causes an erection.