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thyroxine and breast feeding

(20 Posts)
rosiedays Mon 01-Jul-13 20:35:43

I've posted in feeding but thought I'd get more traffic here as I know there's a few thyroxine mums on here.

Today I was wondering about thyroxine and breast feeding so did a search and it seems that taking thyroxine can have an effect on the milk supply. Has anyone got any experience of this.
I'm currently on 200 mcg daily. It seems there is another drug that can be px too help to establish supply.
I'm 37 weeks and really only thought about ebf.
Any advice and experiences would be very welcome.
Tia. X

Iwish Mon 01-Jul-13 20:49:40

My dose isn't as high (50mcg before and after pg and 75mcg when pg)
I took my thyroxine as usual and didn't have any supply issues. I bf for 18 months xx

Teaandflapjacks Mon 01-Jul-13 20:50:02

marking place as I want to know about his too - but I only take 50mgs.

lilstar Mon 01-Jul-13 20:50:16

Hi Tia! I am expecting dc2 and plan to bf as well. I am currently on 250mg thyroxine a day pre pg I was on 150mg. It's not worrying me too much about bf as i bf dc1 no problems. In fact I had enough milk I could have fed a few babies. So in my experience, my underactive thyroid gave me no issues in this area. Hoping it's the same this time too.

Teaandflapjacks Mon 01-Jul-13 20:50:34

cross posted - thanks Iwish exactly my situation! :-)

lavenderblue1 Mon 01-Jul-13 20:52:53

this is the official line -

WouldBeHarrietVane Mon 01-Jul-13 20:53:59

I don't think you need to be unduly worried, op. Bf problems connected to underactive thyroid usually happen when the illness is undiagnosed or under treated. If your tsh and t4 are right the chances of having a problem are much reduced and it is the illness that causes the problem not the thyroxine.

This is a really good resource on this subject from a website run by a well respected bf counsellor:

TobyLerone Mon 01-Jul-13 20:54:38

My best friend is on thyroxine (don't know the dose) and she BFed.

WouldBeHarrietVane Mon 01-Jul-13 20:55:35

Ps I take 125 mg alternating with 100 mg and was on 150 when pg. I ebf to 6 months, had oversupply if anything and am still bf DS now, aged 2 - so please don't worry.

EldonAve Mon 01-Jul-13 20:56:58

never had any issues - taking 150-200 - 3 pgs/babies

Xmasbaby11 Mon 01-Jul-13 21:00:47

I am on 125mg and had problems bf actually - but never heard that as a possible explanation. Interested to hear that as a theory.

rosiedays Mon 01-Jul-13 21:03:18

I love mn!!! Stepping away from Google. Thank you so much ladies. Xx

WouldBeHarrietVane Mon 01-Jul-13 21:09:01

Good! One of the best things you can do to help you bf is to read a bf book while you are pg. I recommend the womanly art of bf, the LLL book- v reassuring and good for questions. Has a section for each stage of bf - first few days, up to 2 weeks, next 4 months etc...

Andromaca Mon 01-Jul-13 21:14:48

I am on 100 a day and i brestfed my DD for 11 months and my DS for 10 month, the only time i had supply issue is been when I decided to trust my bloody useless and incompetent GP who misread my blood test and decided to reduce my dose. I dried up almost overnight. Went back to my endocronologist who gave me the bollocking of my life, put me back to 100 a day and i had no problem whatsoever since

rosiedays Mon 01-Jul-13 21:18:03

I ebf my first 2 but that was over 20 years ago and before thyroid problems. I'm not worried about techniques as had no problems before, hadn't even given it a second thought till today. obviously I've got too much time on my hands. Lol.

PoppyAmex Tue 02-Jul-13 07:59:38

I was on 200 a day and had ridiculous oversupply with DD.

Good luck smile

WouldBeHarrietVane Tue 02-Jul-13 08:04:29

Rosie sounds like you know exactly what you are doing smile I think it's unlikely thyroid will cause any problems - just insist on very frequent tests post birth so the levels stay right and your supply should be fine.

The book isn't about techniques, more like a support book. Might still be worth getting even for an experienced mum as there are good sections about things you might not have considered/experienced last time eg how to blw if you want to and how to identify and treat common bf problems eg milk blisters.

Pobblewhohasnotoes Tue 02-Jul-13 10:04:07

This thread is interesting!

I've just been diagnosed with an under active thyroid and started on thyroxine. I couldn't bf my DS (now 16 months) as I didn't make any milk. I'm hoping to be able to feed (hypothetical) no.2.

rosiedays Tue 02-Jul-13 22:56:28

Thanks ladies.
It seems like it's only a problem if thyroid is not well managed. Glad i researched though as if there is a supply problem I'll know what to check first.

SignoraStronza Wed 03-Jul-13 00:34:41

Someone I know is on thyroxine and had supply problems. However, she was prescribed it because she messed up her thyroid with anorexia as a teenager and still (imo) has issues around food and doesn't eat enough so perhaps it was that which affected her supply rather than the medication.

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