Fildena 100 mg is the best medicine if you are suffering from impotence. This medicine is effective and beneficial for sexual problems in men. This medicine contains an ingredient called Sildenafil which helps in increasing the blood flow to the penile tissues in men. The effect of this medicine lasts for 4 to 6 hours. You can take this medicine before or after food. Do not consume fatty foods or alcoholic beverages with this medicine.