understanding of what the different products actually do or claim to do. The products with the most name brand recognition are Viagra and Cialis which are prescription pills designed to treat erectile dysfunction. Erectile Dysfunction is generally defined as the inability to achieve an erection for long enough to have sex.These mainstream medications are not designed to improve fertility, increase desire, semen volume or penis size. While Viagra and Cialis receive the most exposure due to the large advertising budgets of their manufactures there are also many other male supplement pills available on the internet. The male sexual enhancers available on the internet generally fall into three categories.