How Viagra, Levitra, and Cialis Work
How Viagra, Levitra, and viagra cialis online pharmacy pharmacy Work
Click to view"Viagra® is one of the best-known drugs of all time:
- Google lists over 17 million Web pages that use the word "Viagra." For comparison, Google lists only 3.3 million pages containing the word " aspirin" and only 936,000 containing the word "Tylenol."
- Billions of spam e-mail messages advertise Viagra® every day. There is so much Viagra spam, in fact, that Pfizer (the maker of Viagra) has a page addressing the problem, called Avoid Fake Viagra, prominently listed on Viagra.com.
- Pfizer has spent untold millions of dollars advertising Viagra®, so you see advertisements for the drug constantly on TV.
- Pfizer claims on its Web site that nine Viagra® pills are dispensed every second -- nearly 300 million tablets per year"[1].