Male impotence is treated with the purple pill viagra. This medication should be taken by men 30 minutes before sexual activity. This medication helps men's penile tissues receive more blood flow. This medication has a six-hour half-life. This medication works well to treat erectile dysfunction. Sildenafil Citrate, a component in this medication, helps men achieve a powerful erection during sexual activity. fildena can be purchased from our store. This medication can be used either before or after a meal. Follow your doctor's advice when taking this medication. Drinks that are greasy or cold should not be combined with this medication as they will lessen its effectiveness.