• Gary W Williams.
• Scripps Clinic, Mail Drop 406-C, 10666 North Torrey Pines Road, La Jolla, CA 92037, USA. GWilliams@ScrippsClinic.com
• Curr Pain Headache Rep. 2005 Dec 1; 9 (6): 377-89.

AbstractSelective inhibitors of the cyclooxygenase-2 enzyme were developed to treat pain and inflammation while reducing the risk of the serious gastrointestinal side effects seen with nonselective nonsteroidal anti-inflammatory drugs (NSAIDs). The results of several clinical trials have demonstrated an apparent increased risk of serious cardiovascular events in patients taking the COX-2-selective inhibitors. Although the risk was observed originally with trials conducted with rofecoxib, it was attributed generally to the entire class of COX-2-selective drugs based on a similar mechanism of action and a hypothesis that predicted the possibility of a prothrombotic effect of the drugs compared with nonselective NSAIDs. Subsequent studies have demonstrated that elevated cardiovascular risk is not limited to the use of COX-2-specific inhibitors. An increase in cardiovascular risk actually has been seen with anti-inflammatory drugs of the NSAID class, regardless of whether they are selective or nonselective inhibitors. The US Food and Drug Administration has recommended that all such drugs carry a black box warning for gastrointestinal and cardiovascular risks.

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