Filagra is a drug that is used to treat male sexual dysfunction or ED.  The ingredient called Sildenafil Citrate has a vital role in this medicine. It is necessary to consult a doctor before taking this medicine. This drug raises blood flow to the penis. This medicine should be taken one hour before the intercourse plan. This medicine can be taken only once a day.  Due to this medicine, you can enjoy intercourse for a long time with your partner.