That and related questions just highlight basic ignorance of economics.

U.S. drug manufacturers can offer limited discounts or manufacturing licenses to places like Canada because the Canadian drug market is about five percent of the American market. There are almost as many Lipitor users in the U.S. as the entire population of Canada.

It costs about $800 million for a U.S. company to get a drug through the FDA approval process. Other nations ride for free once the drug is approved.

U.S. drug companies can tolerate lower prices to limited markets to gain access to those markets, but you can't apply the discount to all the purchasers.

Forcing price controls onto the American pharmaceutical industry would have the exact same devastating effects as they do on any other industry. Might not be as obvious--it's not easy to notice new drugs that are never developed or come to market.