Men who cannot maintain a sexual erection for an extended period of time and suffer from erectile dysfunction and impotence. Fildena 150 should be used to treat this issue. Sildenafil citrate is the active element in this. This medication is used 30 minutes or 1 hour before sexual intercourse. This medication has a 4 to 5 hour effect. Fildena 150 medication improves men’s sex lives. Do not combine this medication with heavy foods.