Objective-Studies suggest that regular use of non-steroidal anti-inflammatory drugs (NSAIDs) may lower estrogen levels in women. However, no large, population-based studies have assessed NSAID/hormone associations in men. Our objective was to examine the association between use of prescription and over-the-counter NSAIDs and levels of estrogens and androgens in men. Measurements-Adjusted geometric mean levels of androgens, estrogens, SHBG, LH, and FSH for each category of NSAID use and the percent difference in hormone levels for users vs. non-users.
Design-TheResults-There was no significant association between prescription or over-the-counter NSAID use and any hormone examined after adjustment for potential confounders. For example, geometric mean testosterone levels were 13. 8, 13.6, and 14.2 nmol/L in non-users, prescription, and over-the-counter NSAID users, respectively; the corresponding levels for estradiol were 80. 3, 70.4, and 79.9 pmol/L. In stratified analyses, however, prescription NSAID use was associated with lower testosterone, estradiol, and estrone levels in obese men and lower testosterone and dehydroepiandrosterone sulfate levels in inactive men.Conclusions-While overall these data do not provide strong support for an association between NSAID use and hormone levels in men, prescription NSAIDs may decrease levels of certain estrogens and androgens in obese and inactive men.