Alternative to Thiamazole?

RE: Alternative to Thiamazole?

Clive Ansell — Tue, 02 Feb 2021 09:11:42 GMT

[quote userid="8958" url="~/001/veterinary-clinical/small-animal/f/misc-clinical-discussions/29638/alternative-to-thiamazole"]Surgery not applicable[/quote]

Why?

If medicating or radiation isn't possible, you are left with thyroidectomy, Y/d diet, or leave untreated

why not trial the diet? I've seen some good results with it, albeit small number of cases.

If cat otherwise well, my approach would be surgery.

RE: Alternative to Thiamazole?

Sarah Keir — Mon, 01 Feb 2021 20:21:39 GMT

I've had a couple of cats on it medium term and both of them their hyperthyroidsim was out control a year or so later.

Never too old - age is just a number. Is it a decrepit aged cat or a sprightly 'will live to 100' cat?

RE: Alternative to Thiamazole?

Lucy Fleming — Mon, 01 Feb 2021 09:51:23 GMT

My understanding is that carbimazole is converted in the body to thiamazole, so you probably would see a similar reaction.

So yep, options are:

Radioiodine,

Thyroidectomy,

Y/d.

I would probably put the y/d a fairly distant third for long term use, but if that's the only thing the owners will do, then it may help (but the cat may stop eating the food once no longer polyphagic!)

RE: Alternative to Thiamazole?

Anthony Dennison — Fri, 29 Jan 2021 17:04:00 GMT

We had a similar case like this (think I actually posted on here).

Reaction to Thiamazole, could try Carbimazole (Vidalta). Once daily dosing too...

[quote userid="2235" url="~/001/veterinary-clinical/small-animal/f/misc-clinical-discussions/29638/alternative-to-thiamazole/228188#228188"]I know they are not supposed to be crushed into food, but plenty of clients do despite warnings and it always seems to work ok[/quote]

Wot Rob sez.

I would heed warning though - the cat could also react to Carbimazole, which leaves very little other options!

RE: Alternative to Thiamazole?

Rob Davis — Fri, 29 Jan 2021 09:37:29 GMT

[quote userid="8958" url="~/001/veterinary-clinical/small-animal/f/misc-clinical-discussions/29638/alternative-to-thiamazole"]Surgery not applicable[/quote]

Are there contra-indications or is the owner not keen? YD could be worth a try if single indoor cat...

Surgery seems like the obvious solution if no contraindications. Assuming the cat survives for a reasonable length of time post surgery, then it usually ends up being cheaper than long term meds too.

[quote userid="8958" url="~/001/veterinary-clinical/small-animal/f/misc-clinical-discussions/29638/alternative-to-thiamazole"]Won't take tablets[/quote]

Have they tried? I know they are not supposed to be crushed into food, but plenty of clients do despite warnings and it always seems to work ok, though I guess if reacting to thiamazole there is a fair chance it may react similarly to other oral medications.