How does Fildena 100 work? Fildena 100 works by increasing the blood flow to the penis, helping men to get and maintain an erection. It does this by blocking the action of an enzyme called PDE-5, which helps to relax the muscles in the penis and allows more blood to enter. This increased blood flow helps to create and maintain an erection. What are the benefits of Fildena 100? Fildena 100 can...