Basically Levitra functions by ceasing a specific chemical that invalidates the erection by flowing out the blood from the penis. And More Another category of erection aids is downloadable books (e-books) that all have as their express aim the achievement of a good solid erection. If you are going out on a date, there is no need to discuss this issue right away. Differences 1. He gave me a sample of Levitra (R) (similar to Viagra (R) or Cialis (R)) but once it was gone, so was my hard-on. You have to relax to have an erection. In fact it is the opposite because you are allowing yourself more choices and options when you use these techniques. The companies that have developed levitra alternative them originally are simply trying to cover all their costs and make a profit; the manufacturers of the generic drugs have significantly fewer expenses, which allows them to sell more affordable product. These were very mild by nature, and only frequently occurred among the groups that took 20 mg doses of the drug, where the recommended dose is only 10 mg. Excessive consumption of alcohol can lead to impotence. Then came the elite pool of anti-ED prescription drugs - Viagra in 1998, and Cialis and Levitra in 2003. If he suspects your erection problems are induced by psychological factors, he might ask you to seek counselling.