Metformin lowers TSH in hypothyroid PCOS Patients

Metformin treatment has a TSH-lowering effect in hypothyroid patients with PCOS, both treated with l-thyroxine and untreated

http://www.medscape.com/viewarticle/748073?src=mp&spon=22

Insulin plus elevated LH causes increased Testosterone production in ovary
(Windstar)