Polycystic ovary syndrome (PCOS) is the most common endocrine abnormality in women in the U.S. and is characterized by both reproductive (anovulation and androgen excess) and metabolic dysfunction (insulin resistance). PCOS lacks a simple, safe and effective treatment for women of all ages and all weights. Recently a dietary supplement, inositol, has been used widely to treat women with PCOS. However there are no well designed trials to address the risk/benefit ratio and identify the mechanism of action. In this study we propose a 3 month double blind (of both patients and investigators) randomized controlled trial of inositol supplementation compared to placebo. We hypothesis that women with PCOS who receive inositol supplementation will have a significantly greater reduction in serum total testosterone than women on placebo as well has improvement in glucose tolerance and decrease in fasting insulin.

There will be 4 in person visits Have a physical exam and other evaluations, including ultrasound Take study drug as directed Have bloodwork taken throughout study Complete questionnaires and a daily diary

$300