Impotence and erectile dysfunction are conditions that are treated with a medication called purple viagra. Sildenafil is one of the drug's ingredients. This drug helps to increase blood flow to the panels. It helps men control their hard erections during sexual intercourse. Take this medication no more than once every 24 hours, as directed by your doctor. You can take this medication with water. Chewing this medication is not advised. You can use different dosages of purple viagra; visit fildena.us.com to buy them all at a discounted price.