1.   In rare cases, serious ulcers can lead to death.

2.   Levine said that Kaiser was discouraging its physicians from writing prescriptions for either drug unless a patient is at high risk of having a serious ulcer complication.

3.   The companies said that most patients who develop serious ulcer complications while taking other pain relievers do not have symptoms that would warn them that they are at risk.

4.   The FDA, however, still requires Merck and Pharmacia to include warning labels stating that Celebrex and Vioxx could cause serious ulcers.

5.   The study concluded that patients taking Celebrex suffered fewer serious ulcer complications than those taking ibuprofen or diclofenac.