Fildena 200 is a therapeutic drug that can help you solve this problem of impotence and make you erect again. This medicine contains an ingredient called sildenafil which helps in increasing the blood flow to the prostate tissue in men. You can take this medicine with a glass of water. It is mandatory that you take your doctor's permission regarding the proper dosage before starting this medicine. The effect of this medicine lasts for 4 to 6 hours. This medicine is only taken by men above 18 years of age.