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BMC Med. 2005 Nov 29;3:17.

Long-term use of non-steroidal anti-inflammatory drugs and the risk of myocardial infarction in the general population.

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  • 1Centro Español de Investigación Farmacoepidemiológica (CEIFE), Madrid, Spain.



Recent data indicate that chronic use of coxibs leads to an increased occurrence of thrombotic cardiovascular events. This raises the question as to whether traditional non-steroidal anti-inflammatory drugs (tNSAIDs) might also produce similar hazards. Our aim has been to evaluate the association between the chronic use of tNSAIDs and the risk of myocardial infarction (MI) in patients.


We performed a nested case-control analysis with 4,975 cases of acute MI and 20,000 controls, frequency matched to cases by age, sex, and calendar year.


Overall, current use of tNSAID was not associated with an increased risk of MI (RR:1.07;95%CI: 0.95-1.21). However, we found that the relative risk (RR) of MI for durations of tNSAID treatment of >1 year was 1.21 (95% CI, 1.00-1.48). The corresponding RR was 1.34 (95% CI, 1.06-1.70) for non-fatal MI. The effect was independent from dose. The small risk associated with long-term use of tNSAIDs was observed among patients not taking low-dose aspirin (RR: 1.29; 95% CI, 1.01-1.65). The effect of long-term use for individual tNSAIDs ranged from a RR of 0.87 (95% CI, 0.47-1.62) with naproxen to 1.38 (95% CI, 1.00-1.90) with diclofenac.


This study adds support to the hypothesis that chronic treatment with some tNSAIDs is associated with a small increased risk of non-fatal MI. Our data are consistent with a substantial variability in cardiovascular risks between individual tNSAIDs.

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