Millions of men worldwide suffer from a very common, but often devastating condition called erectile dysfunction. More commonly known as male impotence, this condition can cause men to feel ashamed or humiliated. Fortunately, an advanced prescription drug called Levitra can provide very effective and rapid relief. The tablets are available in 5mg, 10mg or 20mg doses, and they work by increasing blood flow to the penis. This enables men to achieve an erection during sexual intercourse. One of the advantages of Levitra is the fact that it works very quickly, in as little as 15 minutes. Results also last as long as 5 hours so you should definitely give Levitra a try if you suffer from erectile dysfunction.