The greatest medication available to men today for erectile dysfunction and impotence is fildena 100 purple pills. Take this medication half an hour before sexual activity. Only guys who are at least eighteen years old may use this medication. A component in this medication called sildenafil helps men get a better erection during sexual activity. This medication has a 6-hour half-life, so avoid taking it too often. This medication can be used either before or after meals.  Alcohol and fatty foods shouldn't be consumed together with this medication. As prescribed by your physician, you should take this medication.