| |
Viagra |
Cialis |
| Nickname |
the little blue pill |
the weekender |
| Lasts for |
4-8 hours |
36 hours |
| Begins working in |
15 minutes |
30 minutes |
| Time on the market |
7.6 years |
2.3 years |
| Price per pill |
$10 |
$10 |
| Google hits |
16.2 million |
1.32 million |
| 2004 sales |
1.7 billion |
272 million |
|
Overview
