Fildena 150 is a prescription medication used to treat impotence, or erectile dysfunction, in men. It works by increasing blood flow to the penis. Male erection and maintenance are facilitated by this. It belongs to the group of medications called phosphodiesterase type 5 inhibitors. By relaxing the smooth muscles, this medicine increases blood flow to the penis. Since Fildena 150 is a prescription medicine, a doctor's examination is necessary before taking it. 30 to 60 minutes before engaging in sexual activity, take a Fildena 150.