2 heartburn drugs seem OK for heart, says FDA

WASHINGTON — Federal regulators Thursday said they have opened a safety investigation of two popular heartburn drugs — Nexium, marketed as the "purple pill," and Prilosec, its older chemical cousin — after receiving clinical data that appeared to link them to serious heart problems.

But the Food and Drug Administration emphasized that it has found no firm evidence of such a connection, and it advised doctors and patients not to make any changes in medication practices. The agency promised a more complete answer within three months.

"At this time, FDA's preliminary conclusion is that collectively these data do not suggest an increased risk of heart problems," according to an agency statement. "Therefore, FDA does not believe that health-care providers or patients should change either their prescribing practices or their use of these products at this time."

The data were supplied to the FDA and drug regulators in other countries by AstraZeneca, maker of both medications. In a statement, the company said that based on all the data available, Prilosec and Nexium "are not associated with an increased risk of cardiac events."

Nonetheless, FDA said it was notifying the public of the safety review in keeping with efforts to foster greater openness at the agency, which has been criticized for keeping a lid on problems with painkillers, antidepressants and, most recently, the heart risks of the diabetes drug Avandia.