Pfizer shares sink after key drug halted
(AP)


<p><a href="http://us.rd.yahoo.com/dailynews/rss/health/*http://news.yahoo.com/s/ap/20061204/ap_on_bi_ge/pfizer_cholesterol_drug"><img src="http://d.yimg.com/us.yimg.com/p/ap/20061203/capt.38d447629ac54e6a98bcbd09e3a273ad.pfizer_cholesterol_drug_ny111.jpg?x=130&y=84&sig=z7aDhCPqHOHbW20izx.pwg--" align="left" height="84" width="130" alt="The world headquarters of Pfizer Inc. is seen in New York in this April 12, 2005 file photo. Pfizer has cut off all clinical trials and development for a cholesterol drug that was supposed to be the star of its pipeline because of an unexpected number of deaths and cardiovascular problems in patients who used it, the company said Saturday, Dec. 2, 2006. (AP Photo/Mark Lennihan)" border="0" /></a>AP - Shares of Pfizer Inc., the world's largest drugmaker, sank Monday on news that the company had halted development of a key new cholesterol treatment that was heralded as the engine to re-ignite the company's stagnant sales.</p><br clear="all"/>