I ended up buying a program for $19.95 that has over 400+ medication names (brand, common, etc...) - its pretty good. I was scared bout the content they would have but they go into a HUGE amount of detail on every single drug. I looked up nitro and it told me all about nitro. What its for, what it does, who takes it, the correct dosage and the different methods it's taken. What to do after taking it. What pregnant females should do, etc... very very good so far. My only quirk is that since the list is huge, it sometimes is slightly delayed, and i can't just type my letters, i hafta scroll up and then delete the current word and type in a new word to scroll quickly. I can scroll up/down and hit space for next page at least:
http://www.beiks.com/rim/showprod.asp?prodid=502