Fildena 50 is one of the popular and best tablets for solving sex-related problems. Fildena 50mg is taken 30 minutes before sex. After taking it its effect remains for 5-6 hours. Fildena 50 Mg Keep these tablets away from small children and pets. Fildena 50 Mg should be used once a day. Fildena 50 is mostly used by men.