Filagra is a medicine taken for the problem of sexual problems. Taking this medicine helps men to maintain sexual erection for a long time. The drug Filagra contains Sildenafil as its main ingredient. It is important to consult a doctor before taking this medicine. The effect of Filagra medicine is observed for 4 to 5 hours. This medicine is taken 30 minutes or 1 hour before sexual intercourse for men. Do not consume heavy food with this medicine.