Sildenafil acts as the active ingredient in Fildena 25 drugs. Fildena 25 is taken 1 hour before sex, after which the effect lasts for 5-6 hours. Fildena 25 Mg is the best drug to solve a sex problem. Fildena 25 can get a tough and strong lift. Fildena 25 must consult a doctor. Fildena 25mg must be taken only once a day.