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What Causes Heavy Vaginal Bleeding While On Norethindrone?

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Posted on Wed, 31 May 2017
Question: Is it typical to see fluctuation in periods while being on norethindrone? The first month was 29 days, then 24 days now it's been 21 days. Started this medication because of averaging 22 days and having heavy bleeding.
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Answered by Dr. Soumya (12 minutes later)
Brief Answer:
Yes

Detailed Answer:
Hi,

You are right.

It is very common to have fluctuations in periods while you are on norethindrone.

There is nothing to worry about it.
Brief Answer:
Early hormonal changes

Detailed Answer:
Hi,

These medicines including antibiotics cause early rise and fall in hormonal leaves of progesterone. This leads to early and shortened cycles.

Regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Follow up: Dr. Soumya (16 minutes later)
Could me having been on two different antibiotics (doxycycline then a zpak) have had an effect, as to why it is now shorter again?
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Dr. Soumya

OBGYN

Practicing since :2010

Answered : 3106 Questions

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What Causes Heavy Vaginal Bleeding While On Norethindrone?

Brief Answer: Yes Detailed Answer: Hi, You are right. It is very common to have fluctuations in periods while you are on norethindrone. There is nothing to worry about it. Brief Answer: Early hormonal changes Detailed Answer: Hi, These medicines including antibiotics cause early rise and fall in hormonal leaves of progesterone. This leads to early and shortened cycles. Regards