Fildena 25 mg is used to treat sexual dysfunction. Because of this issue, I am unable to obtain a sexual erection. Sildenafil is the active element in the medication Fildena 25 mg. This medication relaxes and strengthens men's blood vessels. Fildena 25 mg is the most effective treatment for erectile dysfunction. This medication improves sex life. This medication is administered 30 minutes or an hour before sexual activity. This medication has an impact for 4-5 hours.