Merck, Schering-Plough Cholesterol Drug Cleared

A new cholesterol-lowering drug from Schering-Plough(SGP Quote) and Merck(MRK Quote) was granted approval by the Food and Drug Administration late Friday.

The launch of Zetia, and its potential to generate billions of dollars in sales, comes at an opportune time for the struggling drug makers. Profits have plummeted at Schering-Plough because of well-publicized manufacturing problems and the looming loss of patent protection for its allergy blockbuster Claritin. Merck, while not mired in as big a slump as Schering-Plough, is also being hurt by generic competition.

Zetia is a new type of cholesterol-lowering medicine entering what is the most lucrative drug market -- an estimated $19 billion spent each year, worldwide. The drug works by preventing cholesterol from being absorbed in the intestines. So-called "statin" cholesterol drugs, like Pfizer's(PFE Quote) Lipitor or Merck's Zocor, work by eliminating cholesterol in the liver. Statins carry higher safety risks, forcing doctors to monitor patients for liver damage. ...