Menstruation Research Today is a free monthly online journal that collates and summarizes the latest research about Menstruation, including details on menstrual cycle, pregnancy, pain, irregular menstruation.

Effects of short-term and long-term metformin treatment on menstrual cyclicity in women with polycystic ovary syndrome.

Essah PA, Apridonidze T, Iuorno MJ, Nestler JE

Department of Internal Medicine, Virginia Commonwealth University Medical Center, Richmond, Virginia 23298-0111, USA.

The purpose of this retrospective study was to compare the frequency of menstrual cyclicity between two groups of patients with polycystic ovary syndrome: women who were followed while on metformin for 3-6 months and those who were followed for >6 months. The results showed that metformin is highly effective in normalizing menstrual cyclicity in women with polycystic ovary syndrome (the overall response rate was 69%, with 88% of responders achieving normal cyclicity), especially with a treatment duration of 6 months or longer (the response rate was 40% higher for women who were treated with metformin for >6 months vs. 3-6 months, 77% vs. 55%).

Published 4 July 2006 in Fertil Steril, 86(1): 230-2.
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