A person with erectile dysfunction problems or erection problems can use this medicine. An hour before s*xual behavior is the best time to take Fildena. This tablet takes anywhere from 30 minutes to an hour to show its effect and can last for 2 to 4 hours. Fildena 50mg dosage including generic Sildenafil Citrate is an effective oral pill for the treatment of erectile dysfunction. The effects of the drug last about 4 hours. If you are considering taking this drug, do it at least 1 to 2 hours in advance. To avoid the possibility of overdose, it is necessary to wait at least 24 hours between doses. Fildena 50 Mg is a treatment for men who cannot get a good erection. It will take about an hour to show the full effect. Men want the help of others to welcome their wives or partners.