I get that Koo....i know the potential market is massive.  But if I'm BP, and paying $5 billion....and if the margin is 5 or 10 cents a pill, there are big costs...among them are: manufacturing, shipping, marketing, packaging and everything else....its not going to be a snap of the fingers to get that $5 billion investment back.  

And then...as I mentioned....there's the potential that 5 or 10 years from now there's some unforseen side effect, or a competitor comes out with a replacement or similar product that cuts into sales.