Fildena is a great drug that is used to treat impotence. This pill is mainly used to increase sexual desire. The main component is sildenafil citrate included in this pill. This pill is the main work improve the blood flow to the penile area. These tablets should be taken 30 to 60 minutes after sex. This pill will stay in your body for 5 to 6 hours. Do not take this medicine with heavy food. These pills are not used by women. This medicine is usually taken only once a day one pill.