A friend of mine turned me onto this study. There was an article in the NY times I believe just recently about this as well. Reasons and consequences of Ibuprofen use prophylacticly. I've had many people, both patients and teammates in the past, pop good old Vitamin I (ibuprofen) before competitions, races and matches. Well this research shows that unless there is an acute injury, ibuprofen could be doing more harm then help.
This study compared the blood work after races of those runners that did and did not take ibuprofen. Those that did, had more elevated inflammation. Read that again, the athletes that were taking it to lessen inflammation, had more! So leave ibuprofen alone unless you have an acute injury. The perils of this have been written before about the possible GI disturbance and damage, but now a little bit more information and reason to keep the use down even more.