is cytomel better than liothyronine marketed by... - Thyroid UK

Thyroid UK

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is cytomel better than liothyronine marketed by mercury pharma. And 2 questions about other medication interfering with t3

Amandajl profile image
15 Replies

hello, I wonder if I could get some advice, I’ve had a bit of a rocky road just recently. My TSH went up to 4.09 from 0.06. I am on T3. I found out that the statins my GP put me on interfered with my the T3. So I stopped taking them. I then was put on sertraline anti depressants again interfered with my T3.

I hope the question is allowed regarding the different makes of T3, please delete if not allowed

Thank you in advance

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Amandajl
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Lalatoot profile image
Lalatoot

Amanda we wouldn't all recommend the same brand of lio . For some of us it is what we can get readily. For others they have their preferred brand but it is personal preference.Stations are not recommended for hypothyroid folks. If you type stations in the search function you will find replies to posts outline why. It is scientifically shown that they are bad for hypos and amongst other things make them more susceptible to muscle damage.

All medication and vitamins should be taken 2 to 4 hours away from thyroid meds

Setraline is well documented as interfering with oral thyroid hormones. Because setraline affects levels of serotonin it alters the serotonin levels in the gut. This in turn can alter the absorption of thyroid meds meaning a slight Inc in dose.

helvella profile image
helvellaAdministratorThyroid UK

I assume you mean Pfizer Cytomel (from the USA)?

(The branding Cytomel is also used by Ace in Netherlands. It is a different formulation and comes in different dosages.)

You have to be aware that Mercury Pharma liothyronine is available only in 20microgram dosage. Where Pfizer Cytomel is available in 5 and 25 and 50 microgram dosages.

We regularly find members reporting that they get on better with some makes than others. But it is often not possible to predict. And with liothyronine, it seems most often to be that some feel slightly stronger than others.

helvella - Thyroid Hormone Medicines

I have created, and try to maintain, a document containing details of all thyroid hormone medicines in the UK and, in less detail, many others around the world.

From Dropbox:

dropbox.com/s/wfhrlmb5983co...

From Google Drive:

drive.google.com/file/d/12N...

Amandajl profile image
Amandajl in reply to helvella

Hi, I get it from Mexico Cytomel

helvella profile image
helvellaAdministratorThyroid UK in reply to Amandajl

In which case, I suspect you mean Grossman Cynomel. A different product.

I'd rather those who have tried these products replied - I do not take any liothyronine (T3) so cannot speak from experience.

Amandajl profile image
Amandajl in reply to helvella

Thank you, it’s such a minefield, I’ve just got it on the NHS and not needed to buy my own. My energy levels have dropped massively since changing

helvella profile image
helvellaAdministratorThyroid UK in reply to Amandajl

Has your dose changed? After all, Mercury Pharma produce 20 microgram tablets whereas Grossman produce 25 microgram tablets.

Amandajl profile image
Amandajl

The pharmacy have given me a pill cutter as the Endo has prescribed 25 microgrames twice a day xxx

thyr01d profile image
thyr01d in reply to Amandajl

Please forgive me if this is a silly comment but I have noticed that with one of the brands of liothyronine I am prescribed you cannot take half a pill. You have to dissolve the pill in water, drink half and throw away the rest. I'm wondering if you have a brand that cannot be cut in half? That might explain your energy drop.

helvella profile image
helvellaAdministratorThyroid UK in reply to thyr01d

That dissolve in water approach is certainly the advice for some makes.

However, it appears to be based on the MHRA not being convinced that splitting (or any other technique) is consistent enough. Not that the tablets literally cannot be split.

As the poster has even been supplied with a pill cutter, it appears that the pharmacy doesn't have any problem trampling over MHRA advice!

I wouldn't be at all surprised if it would have made more sense all round for the endocrinologist to have prescribed 20 + 5 microgram Roma capsules. No cutting. No splitting. No dissolving.

thyr01d profile image
thyr01d in reply to helvella

Yes, I know it's about consistency in the tablet, I didn't write that out because I presumed we all knew. Yep, remarkable that we are supplied with pill cutters and told to split the tablets and yes, how much more sense it would make to prescribe in smaller doses!!!

Amandajl profile image
Amandajl in reply to helvella

I don’t know if they have a different make to give me ?

helvella profile image
helvellaAdministratorThyroid UK in reply to Amandajl

Roma are capsules - so a prescription written for tablets wouldn't work.

if the doctor would write a new prescription, you'd be fine.

(Roma capsules are the least expensive liothyronine in the UK (NHS prices). 5 and 20 are £55 for 28, 10 are £65.)

helvella - Thyroid Hormone Medicines

I have created, and try to maintain, a document containing details of all thyroid hormone medicines in the UK and, in less detail, many others around the world.

From Dropbox:

dropbox.com/s/wfhrlmb5983co...

From Google Drive:

drive.google.com/file/d/12N...

Amandajl profile image
Amandajl in reply to thyr01d

I don’t dissolve with water, I take sublingual. The Endo told me to cut the tablet and the chemist gave me the pill cutter on prescription

thyr01d profile image
thyr01d in reply to Amandajl

Yes, that's my point. My endo gave me the prescription and pharmacy gave me the pill cutter but months later when I was reading the leaflet I saw that some brands are not suitable for splitting, you have to dissolve the whole tablet in water and drink a portion of the solution. Hope that's clearer. I had noticed I was worse even though on the same dose before reading the leaflet. Sorry if I wasn't clear before - I'm saying it's worth checking that the brand of tablet you are splitting is suitable for splitting and not one of those that must be dissolved.

Amandajl profile image
Amandajl in reply to thyr01d

Thank you yes I understand now

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