Fildena 50 is only taken for impotence in men. This medicine contains an ingredient called sildenafil which helps men to know strong erections during intercourse. This drug should be taken only by men above 18 years of age. You can also take this medicine before or after a meal. The effect of this medicine lasts for 4 to 6 hours. You can also take this medicine before or after a meal. Do not consume fatty foods or cold drinks with this medicine. Take this medicine as advised by your doctor. You can visit pharmev.com for more information.