Chromium+vitamin D3+d Chiro Inositol+myo Inositol belongs to a class of medications called nutritional supplements used to treat polycystic ovary syndrome (PCOS). Also, it restores normal menstruation and improves the overall function of the ovaries. Polycystic ovary syndrome is a hormonal disorder common in women of reproductive age. It causes enlarged ovaries with small cysts on the outer edges.