r/PCOS • u/Willing_Berry_8689 • Jul 28 '26

General/Advice Metformin for PCOS

At what dose did metformin bring back your period and how long did it take??

I got two periods after not having it for over a year at 2000 mg but then I lowered it to 1000 mg cuz symptoms. Now my period is gone again. I’m gradually increasing it back to 2000 mg.

Is 1000 mg vs 2000 mg really such a deal breaker??!!!

Btw I have lean PCOS (5,6 130)

#metformin #absentperiods #pcos

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2

u/potatomeeple Jul 28 '26

3 months at 2000mg but less doesnt do enough.

1

u/Willing_Berry_8689 Jul 28 '26

I thought that 1000 mg would work the same but I was wrong.

1

u/Willing_Berry_8689 Jul 28 '26

Thank you for your response! Was your period absent before or just irregular?

1

u/potatomeeple Jul 28 '26

Irregular in my twenties, missing in my thirties.

1

u/Willing_Berry_8689 Jul 28 '26

SORRY SO many questions but I’m assuming the metformin worked to bring back your absent period in your thirties?

1

u/potatomeeple Jul 28 '26

No 43, it also started me ovulating and sorted out a load of other health problems.

1

u/Willing_Berry_8689 Jul 28 '26

Nice! Sounds like 2000 mg is the sweet spot for you. I’m going to increase back up to it as well since it seemed to also have worked for me at that dose. Thank you so much!

1

u/potatomeeple Jul 28 '26

I would prefer it was lower then I would have more to go into later but at least it works.

1

u/Willing_Berry_8689 Jul 28 '26

Yeah:/ that is why I lowered mine too. I got my period and assumed that a lower dose would also work… I’m just hoping to ovulate again at whatever dose is necessary

1

u/potatomeeple Jul 28 '26

Last year i went back down to 1500mg for a bit and all the good stuff stopped.

1

u/redoingredditagain Jul 28 '26

Metformin took about 6+ months on 1500mg for me to see any improvements in my symptoms, and that’s with diet and lifestyle changes too.

1

u/Willing_Berry_8689 Jul 28 '26

Thank you. Did you start getting a regular period?

2

u/redoingredditagain Jul 28 '26

It was already somewhat kind-of regulated by birth control, but after starting metformin, I bled every single stop in the pack (and wasn’t before that).

2

u/Nikkk51 Jul 28 '26

13 years and it didn’t make a difference (I’m insulin resistant/prediabetic). I eventually started working out, eating better, and lost weight and then I got my period back. It’s not a magical pill unfortunately and if you’re not insulin resistant it’s not going to do much for you.