Endo gave me private prescription

[Loopnova]

so, good news! The private Endo appointment went as I’d hoped and he was happy to let me try T3. I’m now trying to source it. I’ve had a no back from a couple of places on the list from Thyroid UK. Thing is, I just wanted to check as on the prescription it says triiodothyronine rather than liothyronine. Is that the same thing? when I asked Roseway they said they stock Thybon brand (as I was after the cheapest) but don’t have triiodothyronine.

[helvella Administrator]

I am mystified as to why a doctor would prescribe using the name triiodothyronine.

As a medicine, the recommended International Nonproprietary name (rINN) is liothyronine. And it is usual to use this name - or the brand name.

In Germany, the spelling is slightly different and for Thybon Henning it says: Liothyronin hydrochlorid

One name used in chemistry is triiodothyronine, but a more specific version of the name is 3,3',5-Triiodo-L-thyronine. There are several slightly different substances that could reasonably be called triiodothyronine. Including reverse T3! And you do see triiodothyronine (or similar - maybe including a hyphen or dropping the e at the end) occasionally used such as on some packaging.

But it is just plain odd to the point of perversity to write triiodothyronine on a prescription when that is not its rINN nor a brand name. And I wouldn't blame Roseway for not dispensing against the prescription. (I'd hope a qualified pharmacist would actually understand - at least when prompted.)

More information about the chemical substance (and its many names) is available here:

pubchem.ncbi.nlm.nih.gov/#q...

[Loopnova in reply to helvella]

Thanks. Yeah when I googled it it came up all to do with T3 testing. Wonder if it could be a mistake? I’ll have to ring him tomorrow and see what’s going on.

[SlowDragon Administrator]

Private prescription Thybon Henning

Suppliers and costs

healthunlocked.com/thyroidu...

[Loopnova in reply to SlowDragon]

I was looking at that post, thanks.

Roseway want the prescription written right (fair enough) so I’m working on that.

Smartway say they need it to say Thybon brand and a clinical need why which I don’t know if I can get.

I’ve been round my local pharmacies today. Cheapest is Boots who can get me morningside which will work out £27 a month but they said the pills are tiny and I’ll struggle cutting them. (I’m looking at get 20mcg tablets and quartering as I have to take 5 twice a day)

[SlowDragon Administrator in reply to Loopnova]

Many (most?) of us get 20mcg tablets and cut to get 5mcg

As 5mcg tablets are ludicrous price

Cutting with sharp craft scalpel

[DippyDame]

Triiodothyronine is the natural T3 produced by the thyroid gland

Liothyronine is a metabolite, the bioidentical form of T3 which is manufactured as replacement hormone....for prescription or in some countries available OTC.

NDT includes both thyroid hormones: thyroxine (T4) and triiodothyronine (T3) because it is produced from natural desiccated thyroid glands

Your private endo doesn't sound like the sharpest tool in the box!!