A member asked:
Does metformin 500 cause missed periods?was put on it for pcos but had regular cycles before tht.was also diagnosed with hypothyroid but under control
3 doctors weighed in across 3 answers
No: Assuming you have pcos you shouldn't have amenorrhea. Take a pregnancy test.
Answered 3/14/2013
5.2k views
Generally no: Metformin is used to induce normal menses if you have pcos. Usually you need at least 1000-2000 mg/day in divided doses. Hypothyroidism can also affect periods, as can many other disorders, including pregnancy, if the metformin was able to restore your fertility, which is common.
Answered 3/13/2014
5.2k views
No!: I have never seen metformin interrupt menses. However, the underlying metabolic syndrome, causing pcos may have gotten worse. Also, a low thyroid which you had causes excessive periods and bleeding. Correcting this may have given the impression that your menses were normal. Finally, if you are over treated with thyroid-you will be amennorheac.
Answered 12/10/2013
5.2k views
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My TSH is around 3. Fatigue, low energy. Have PCOS and insulin resistance. Can I be suffering from hypothyroidism? Is there a link with metformin?
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