Lipitor has long dominated the list of the top selling drugs annually. However, with the expiration of the patent for the active ingredient of Lipitor, atorvastatin, at the end of 2011, there is a new king of the hill.
Lipitor has long dominated the list of the top selling drugs annually. However, with the expiration of the patent for the active ingredient of Lipitor, atorvastatin, at the end of 2011, there is a new king of the hill.
