http://www.lab88.com/productpages/articles/irexis.asp
If you go to the "Health and Fitness" section, then scroll down, you will find a section on "Sex Enhancement" with several different products listed.
I'm not saying these are good, bad, or indifferent folks, just saying go look for yourself, they MIGHT be good for you.
As with all drugs, ALWAYS check with your doctor FIRST, and NEVER exceed the prescribed dose.