BNF cytomel liothyronine

[sarahstevenson]

Just gathering info pre endo phone appt in August. Am currently prescribed 37.5mcg ACE Dutch licenced cynomel through NHS, 25mcg tabs. Brand isn't working for me. I notice BNF list American Cytomel 25mcg. Is anyone managing to find a pharmacy which can source this for NHS? No names needed, just checking whether it would be a realistic swap. Thanks in advance.

[helvella Administrator]

Ace liothyronine is called Cytomel (not cynomel). It is their own product and they have registered the name in Netherlands.

USA (Pfizer/King) Cytomel is listed on the NHS' dm+d database (which feeds into BNF) but as a special import.

dmd-browser.nhsbsa.nhs.uk/a...

I suspect that it would be pretty much impossible to get prescribed now that there are several UK liothyronine products. However, any pharmacy can contact specials importers (there are several) and set up an account and order - if they are confident about getting paid.

Mind, I am rather surprised you are getting Ace Cytomel!

See my UK medicines document.

helvella's medicines documents (UK and Rest of the World) can be found here:

helvella - Thyroid Hormone Medicines

helvella has created, and tries to maintain, documents containing details of all thyroid hormone medicines in the UK and, in less detail, many others around the world. There is now a specific world desiccated thyroid document.

I highly recommend viewing on a computer screen, or a decent sized tablet, rather than a phone. Even I find it less than satisfactory trying to view them on my phone.

helvella - Thyroid Hormone Medicines - UK

The UK document contains up-to-date versions of the Summary Matrixes for levothyroxine tablets, oral solutions and also liothyronine available in the UK. Includes injectables and descriptions of tablet markings which allow identification. Latest updates include all declared ingredients for all UK products and links to Patient Information Leaflets, etc. PLUS how to write prescriptions in Appendix F.

dropbox.com/s/bo2jzxucgp9hl...

helvella - World Desiccated Thyroid

Contains details of all known desiccated thyroid products including information about several products not considered to be Natural Desiccated Thyroid (NDT/Desiccated Thyroid Extract/DTE).

dropbox.com/scl/fi/gx6dmz5i...

helvella - Thyroid Hormone Medicines - RotW

Contains details of all levothyroxine, liothyronine and combination products - excluding desiccated thyroid products. Details available vary by country and manufacturer.

dropbox.com/s/dliou4fszbegw...

The link below takes you to a blog page which has direct links to the documents from Dropbox and QR codes to make it easy to access from phones. You will have to scroll down or up to find the link to the document you want.

Last updated 19/07/2024

helvella.blogspot.com/p/hel...

[sarahstevenson in reply to helvella]

Thank you so much, Helvella. You are so brilliant at giving time and accurate information. So much appreciated!

I have ACE sourced by brill pharmacy as recommended by Thyroid UK. Long story. Sorry re name slip up.

Best wishes and thanks for adding to my info.

[helvella Administrator in reply to sarahstevenson]

Sorry if I am sometimes a bit blunt!

[sarahstevenson in reply to helvella]

Not at all you're straightforward and fab! 😊

[Hidden in reply to helvella]

☺️

[Hidden]

Moi j'utilise tiromel et ça fonctionne très bien

[sarahstevenson in reply to Hidden]

Moi aussi 😊, mais en Angleterre je ne peux pas avoir cela dans mon dossier médical.

[Brightness14]

Cynomel is French and is made by Sanofi here in France.

[sarahstevenson in reply to Brightness14]

Exactly 😊, I was on French Sanofi Aventis 25mcg for many years in UK trying to save our National Health Service (NHS) money but it became unavailable post Brexit. After a battle to retain my NHS prescription, a super pharmacy was able to fulfil handwritten General Practioner (GP) prescriptions with ACE the only 25mcg version now officially available in UK.

[helvella Administrator in reply to Brightness14]

There is also Grossman Cynomel in Mexico.

It is currently a registered trade mark from filings made in:

France, Chile, India, Costa Rica