"As I mentioned previously, I take ibuprofen quite regularly, but I also don’t want to ruin the results from my hard work in the gym. So now (and I recommend this to you also) I do not take these medications within 24 hours of a workout. Second, if I need to use a pain reliever that won’t short-circuit the muscle growth process, there is an alternative, and it’s a good one. I recommend using Biofreeze Gel"
http://www.ast-ss.com/articles/article.asp?AID=118
