Predictably, attention then turned toward traditional nonselective COX inhibitors, such as naproxen, ibuprofen, and diclofenac, because they inhibit both COX-1 and COX-2. Numerous groups reported that nonselective NSAIDs also increase cardiac risk significantly.3, 4 and 5 In fact, all NSAIDs (with the exception of aspirin) carry a warning from the US Food and Drug Administration because of their perceived cardiovascular risk, and are contraindicated immediately after cardiac bypass surgery.6 Naproxen is perhaps the most controversial of these traditional NSAIDs. Although generally considered to be the safest of the group, it has been shown in different observational studies to have protective,7 insignificant,8 or deleterious effects9 with regard to cardiovascular risk.