keywords: fitch merck vioxx rating ratings
text: UPDATE 1 - Fitch cuts Merck #39;s triple-A rating by two notches Fitch Ratings on Thursday cut Merck  amp; Co. Inc. #39;s (MRK.N: Quote, Profile, Research) top  quot;AAA quot; rating by two notches, citing its withdrawal of the arthritis drug Vioxx and subsequent 