Cutting Levothyroxin Tablets: Hi I just wondered... - Thyroid UK

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Cutting Levothyroxin Tablets

NadeNud profile image
40 Replies

Hi

I just wondered if the medicine in the Levothyroxine tablets was equally distributed.

I was told to break my tablets by one doctor and then warned against it (saying the medicine was not equally distributed).

Can anyone please advise on this point.

Many thanks :)

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NadeNud profile image
NadeNud
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40 Replies
gabkad profile image
gabkad

Doesn't matter one way or the other. If you take one half of the pill you break today and the other half tomorrow, it doesn't matter. T4 has such a long half life, taking a little bit more today and a little bit less tomorrow makes no difference. Some people, who are poor at taking their meds every day, are told to take the whole week's worth of T4 at one time.

Apples profile image
Apples in reply to gabkad

I would be really worried about taking nearly 700 T4 at one time that would be a huge dose .... I thought if I missed a dose one day I was not supposed to double up the next day.

gabkad profile image
gabkad in reply to Apples

A while ago I linked to an excellent endocrinologist's essay about patients who don't absorb T4 well and how he gives them hundreds of mcg per day just to have them at normal blood levels. But that most endos would suspect that these people were not compliant. He wrote that patients with compliance issues are asked to take all the T4 in one dose once per week.

gabkad profile image
gabkad in reply to Apples

A while ago I linked to an excellent endocrinologist's essay about patients who don't absorb T4 well and how he gives them hundreds of mcg per day just to have them at normal blood levels. But that most endos would suspect that these people were not compliant. He wrote that patients with compliance issues are asked to take all the T4 in one dose once per week.

Hennerton profile image
Hennerton

I have been told by pharmacies not to cut tablets but I have to cut T3, as it comes in one strength only under the NHS. I make sure I use the same cut tablet until it is finished and do not hop about between different cut up tablets. I figure that this way, I shall get all the potency at some point. As a matter of interest, why do you need to cut Levo, as it comes in so many sizes?

NadeNud profile image
NadeNud in reply to Hennerton

Hi

When I get Hypo symptoms I prefer to increase my Levo by 12.5 (splitting a 25 tablet). My needs seem to fluctuate with activity and perhaps approaching menopausal variations.

Going to try adding T3 instead, too.

Shpa profile image
Shpa in reply to NadeNud

Can you get 25 mg in levothyroxine??

I was told that the minimum is 50 and you can’t get less than that.

I take 50 but have recently started cutting in half.

helvella profile image
helvellaAdministratorThyroid UK in reply to Shpa

25 microgram levothyroxine tablets do exist.

12 (or 12.5) microgram levothyroxine tablets also exist.

But they are only available in some countries, and some makes.

In the UK, both 25 and 12.5 microgram tablets are available, but only from some companies. And 12.5 microgram tablets are relatively expensive.

I don't know where you are!

This document might be of some interest:

dropbox.com/s/cag4qidukqeb8...

Shpa profile image
Shpa in reply to helvella

Oh thank you.I am in the uk.

helvella profile image
helvellaAdministratorThyroid UK in reply to Shpa

In which case, Wockhardt, Mercury Pharma and Teva all produce 25 microgram tablets.

Teva produce 12.5 microgram tablets.

(If you add your country to your profile, it might help others to answer appropriately any future posts/questions. :-) )

Anon_77 profile image
Anon_77 in reply to NadeNud

Thats really interesting !! Do you find you need to do that some days such as at times of period cycles ? As ive noticed I get slight fluctuations and not well at those times but cant work out why as i am usually really well!

helvella profile image
helvellaAdministratorThyroid UK

Lots of people do break/cut their tablets.

We have seen suggestions that manufacturers advise against doing so because the active ingredient may not be evenly distributed. However if you are careful to avoid losing any crumbs, and take the first half one day, the second half the next day, I doubt the difference is significant for levothyroxine. After all, the alternative will likely be to go for alternate day dosing which would be a much greater day to day variation.

Ironically, some people have reported pharmacies splitting batches of tablets. That would be worse because you could end up taking the big "half" of every tablet day after day!

If the manufacturers care about it that much, let them release 10 or 12.5 microgram tablets!

Some makes (e.g. the USA product Levoxyl - but no UK make) are actually designed to be easy to break.

NadeNud profile image
NadeNud in reply to helvella

Yes, that would be so much better....sometimes I've taken an extra 12.5 and then experienced an uncomfortable raised temperature for the rest of the day...

ClareLH profile image
ClareLH

Rather than splitting the tablet, I take 100mcg on one day and 125 on the next. I have to put them in a weekly pill box though as otherwise I forget what dose I've taken the day before!

NadeNud profile image
NadeNud in reply to ClareLH

Yes, I need to work out my dose as 100 seems ok for a while but then, it seems with activity, I get hypo.

I've decided to keep a diary and work it out myself based on how I feel as I'm sick of the doctors and all the incompetence I've been through this year (all in earlier posts).

I read some threads on here that seemed very cautious about dose changes but your suggestion would suit me better.

Thanks a lot :)

Ruby1 profile image
Ruby1 in reply to ClareLH

When I start a new pack, I get a sharpie pen and write the initials of the day on the blister, Sa,S,M,T etc I don't know if this system might work for you? Writing Sa,M,W,F etc on one then, Su,T,Th etc on the other?

I know it sounds pathetic, but this is the only way I can remember for sure if I've taken my tablet!

NadeNud profile image
NadeNud in reply to Ruby1

Sounds pretty good to me! It's so easy to forget and we have to be organised with our condition...

Thanks for the reply :)

Ruby1 profile image
Ruby1 in reply to NadeNud

Of course it all depends on us remembering what day of the week it is ha ha!! :)

Actually on a more serious note, I've just reread your post - and the very reason I joined this forum was because I enjoy sport but I do find activity can really knock me for six and it can take days to recover if I push myself. I never managed to find anything on this, but I am convinced that because we cannot control our metabolic rate, we don't manage sport so well. I seem to be okay once my fitness levels are up, but getting them there is doubly hard.

NadeNud profile image
NadeNud in reply to Ruby1

Hi

If you look at some of my earlier posts, I asked about exertion and got some really interesting replies. There's also a link to a study with athletes that monitored the depletion of thyroxine and how the thyroid replenishes it as and when it is needed.

I went hypo again this summer due to extremely increased activity and now feel I need to respond to symptoms a lot quicker....or even break a 25 tablet during increased activity.

Also, in 'Stop the Thyroid Madness', the author states that those taking Natural desiccated thyroid need to increase it during times of exertion...which reflects my experience on T4. I suppose it depends on your blood storage of T4 and how efficiently it can be replaced...

Ruby1 profile image
Ruby1 in reply to NadeNud

I will look into that, thank you. I researched it years ago and gave up looking, but I know I do not cope well when I increase my activity.

ClareLH profile image
ClareLH in reply to Ruby1

Hi Ruby, I'm a runner. Apparently, we can take longer to recover from training and are more susceptible to symptoms of over training.

I found this article really interesting: scienceofrunning.com/2013/0...

I also find I need to be careful on long runs with energy intake as we're more susceptible to hypoglycaemia too.

Ruby1 profile image
Ruby1 in reply to ClareLH

Many thanks - I'll check that out. I used to run, but have also been into swimming and cycling over the years - but never triathlon :) I broke my pelvis skiing last year so have taken ages trying to get a bit of fitness back.

So nice to know I'm not the only one!

Fascinating read - and what I suspected! I have just skimmed it for now, but definitely worth a good read - thank you.

Pepekins profile image
Pepekins

My levels have been changed so much over the last 6 months. I don't have a thyroid gland, so make no hormone myself. When I was younger I used to chop and change doses, and had no idea at all how wrong that was. Now I alternate 125 and 100 with 112.5 on a Wed and its a nuisance halving the pills as here in Uk we only have 100, 50 and 25. Perhaps I need to find a pill cutter as I find it very difficult halving the 25 pill evenly. I never thought of using the other half the following week!

NadeNud profile image
NadeNud in reply to Pepekins

I don't have a thyroid either so I'm totally dependent on the medication. Trying to find the right dosage on my now as the doctors have been so appalling! So glad I found this forum..

ClareLH profile image
ClareLH in reply to Pepekins

Before I went alternate days of 125/100 mcg, I did 5 days at 125 and 2 days (Mon& Thurs) at 100. There's maybe better ways to manage the dosage than cutting the tiny tablets in half, just a thought.

Duchy82 profile image
Duchy82

As most tablet presses the manufacturers use are gravity fed followed by compression there is no guarantee that the active would be evenly distributed but it would only be a minimal difference between both halves.

helvella profile image
helvellaAdministratorThyroid UK in reply to Duchy82

You might well be right - but the comment about unevenness I referred to came from one of the UK manufacturers. (Drat - can't remember which one!)

Rod

Duchy82 profile image
Duchy82 in reply to helvella

Oh i don't doubt it they are covering their backs really. I work for a company that manufactures tablets (veterinary not human) and i know it can't be guaranteed that it is evenly distributed the tablet presses and bulk powder mixers are just not that accurate all they can guarantee (through laboratory testing) is that the strenght it says on the pack is what is in one tablet.

From experience across a 500kg bulk mix there is about a 10%-20% variation in distribution weve never tested distribution in a tablet I'm not sure its possible

Pepekins profile image
Pepekins

After being fine on 150mcg for years and years (no thyroid after TT) it all seemed to go pear-shaped. Then I was on 125mcg which was too much after a while, then alternate 125 and 100mcg. Now (worked this out for myself) I take 125 Mon, Tues 100, Wed 112.5 (I cut a tablet in half) Thurs 100, Frid 125 and Sat and Sun 100mcg. Is there a less complicated way? Alternate doesn't work out obviously on account of uneven no of days in the week. This seems to work ok but of course the other half of the tablet I cut in two isn't used again until the following week. May I also ask which is the original Levothyroxine and which are the generic ones. I am trying to get meds which are as pure as possible, without all the fillers. I feel quite energetic, no cold hands and feet, but I don't always sleep well (takes me hours to 'drop off' and now and then can be a bit full-on (overmedicated I think) I also swim 50 lengths front crawl twice a week and do yoga class twice a week, because I want to preserve my bones having had a hip replacement due to loss of calcium (didn't know about Vit D importance), had carpal tunnel (better since yoga class). Looking at a few supplements now but its a minefield as no-one wants to be 'rattling'. So grateful for this site, I have learned such a lot.

NadeNud profile image
NadeNud in reply to Pepekins

Hi

I'm in the process of working my own dose out after a number of TSH tests and hypo symptoms. I thought I'd over-exerted and gone hypo in the summer but I've just dropped again so am concluding that I need a bigger dose (dry skin, muscle aches, irritability etc).

How did you work your own dose out? Did it take long?

I'm keeping a diary with dosage and symptoms at the moment.

Pepekins profile image
Pepekins in reply to NadeNud

Trial and error actually. .. best wishes.

NadeNud profile image
NadeNud in reply to Pepekins

Hi

When you say that you worked your dose out by 'trial and 'error', was that with a doctor over every 4-6 weeks or alone?

Nadine :)

Pepekins profile image
Pepekins in reply to NadeNud

Alone, before I knew about this great forum and also the risks of switching from one doseage to another.

NadeNud profile image
NadeNud in reply to Pepekins

What are the risks?

In some ways, due to the manufactured doses, aren't you switching a lot anyway? I hope that doesn't appear rude, I appreciate all the feedback and never realised how much I would need to learn...:)

helvella profile image
helvellaAdministratorThyroid UK in reply to Pepekins

You could change to a much simpler way of doing things. Ignore days of the week. Take 100, 100, 125. And keep repeating that pattern. Over a period of four weeks, you would have taken only 25mcg less than on your current regime!

It won't be easy to read, but I will paste what I mean below. The first number is your current pattern, the second number is my simplified version.

Mon125100

Tue100100

Wed112.5125

Thu100100

Fri125100

Sat100125

Sun100100

Mon125100

Tue100125

Wed112.5100

Thu100100

Fri125125

Sat100100

Sun100100

Mon125125

Tue100100

Wed112.5100

Thu100125

Fri125100

Sat100100

Sun100125

Mon125100

Tue100100

Wed112.5125

Thu100100

Fri125100

Sat100125

Sun100100

Total30503025

Rod

Pepekins profile image
Pepekins in reply to helvella

Thank you it is so kind of you to type that all out. Wonder if it would make any difference having 25mcg less over that period... I seem to be just about fine on the present (complicatede) dosage.

helvella profile image
helvellaAdministratorThyroid UK in reply to Pepekins

Could always take one extra 25mcg tablet every four weeks/month? E.g. the first day of each month on which you would normally have taken 100.

Pepekins profile image
Pepekins in reply to Pepekins

Thank you - good idea.

TSH110 profile image
TSH110

I read about some tests on cutting tabs and accuracy of it. The accuracy of cutting is the problem not the tablets ingredient distribution itself but it was concluded that the levo was slow release so the slight differentials were insignificant over time.

djcnl06 profile image
djcnl06

i know this is not a good idea but i realized that i have an increase in TSH from 1.00 to 4.00 but my specialist told me to stick with the same 100mcg. my TG also changed from 0.00 to 0.02 so what i did just now, i cut my 100mcg and took the 1st half 4 hours after my first 100mcg, will take the other half tomorrow with my original 100mcg. yes, without my specialist telling me to do so. so i was thinking of looking for another specialist who is very keen with the dosage/TSH.

not sure if its just that i gained weight even before i had my TT i dont feel any side effects or issue like others have (issues not sure if its because of my weight before i had my TT, fatigue, lethargic, less energy, weight unchanged despite the workout and lean diet)

i need to have normal levels for the next 6 months as i have started working out (with whey protein intake after 9 hours of levo) else i may find it useless to workout having a 4.00 TSH level.

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