Fildena 150 mg is beneficial for men with impotence and erectile dysfunction. sildenafil, one of the ingredients in this drug, helps men ejaculate for longer periods of time. You can take this medication before or after eating. Half an hour before engaging in sexual activity, take this medication. This drug helps men's penile tissues receive more blood flow. It takes 24 hours for this medication to start working. This medication should only be used by males who are at least 18 years old. When taking this medication, heed your doctor's instructions. Avoid taking this medication with fatty meals or cold beverages.