Check this out:
Taking daily recommended dosages of ibuprofen and acetaminophen caused a substantially greater increase over placebo in the amount of quadriceps muscle mass and muscle strength gained during three months of regular weight lifting, in a study by physiologists at the Human Performance Laboratory, Ball State UniversityIsn't that just interesting? So, should we change the saying in the weight room to "less pain, more gain?" An interesting question may also be: will taking a daily Tylenol when lifting, or an Ibuprofin, produce gains equal to that of Anabolic Steroids or Human Growth Hormone (HGH) or protein powders, whey protein, amino acid supplements, etc? :)
Regardless, it was an interesting study.