Sildenafil acts as the active ingredient in Fildena 100mg drugs. Fildena 100 Mg is taken 1 hour before intercourse, the effect of which lasts for 4-5 hours. Fildena is the best drug to solve the problem of impotence. Fildena 100 Mg drugs are also known as magic pills or purple pills. Fildena 100 is ED's best drug. Fildena 100 is a widely used drug. Fildena 100 Mg is widely used.