FDA's Safety Reviews of Prilosec and Nexium Find No Evidence of Increased Rates of Cardiac Events
FDA has completed a comprehensive, scientific review of known safety data for the drugs Prilosec and Nexium. While both of the long-term studies reported to FDA on May 29, 2007 collected safety data, the study protocols did not specify how heart problems, such as heart attacks, were defined or verified. As a result, evaluating the information that was gathered about the safety of both drugs in these studies was challenging. FDA's assessment of the information from the data gathered was further supported by an additional analysis of 14 comparative studies of Prilosec, four of which were placebo-controlled. Although these studies were not specifically conducted to assess the risk of heart problems, and patient follow-up was incomplete, they do not suggest an increased risk of heart problems with the use of Prilosec or its newer formulation Nexium.