Amusing comment in BSAVA Formulary

Re: Amusing comment in BSAVA Formulary

Charlotte Marshall — Thu, 25 Mar 2010 19:05:26 GMT

I have gone for 2 out of 3 days or eod dosing as well in these cases. I also have ended up swopping a few cats from felimazole to vidalta for similar reasons.

Re: Amusing comment in BSAVA Formulary

Clive Ansell — Tue, 23 Mar 2010 11:49:03 GMT

I have had similar cases where I have tried eod or 2 in 3 day dosing first, then if unsuccessful switched to 5mg uid Neomercazole, which as Martin says is within the rules of the cascade.

I have had a few cats now that have not reacted well to Felimazole; inappetence, anorexia, occasionally vomiting. Prior to Videlta, I used to change to Neomercazole which worked well.

Re: Amusing comment in BSAVA Formulary

Vikki Halliday LLB — Tue, 23 Mar 2010 10:00:55 GMT

you don't say if the cat is showing any clinical signs of hypothyroidism or carb toxicity.

I used to mess around with the doseage of hyper T4 cats if their results were below the reference range, but after a long discussion with the makers of Felimazole. they stated that it really is not necessary, as cats will quite happily tolerate being hypo throid effectively, without any adverse clincal effects.

the only proviso to this is if they start to show signs ov toxicity, facial pruritis, bradycardia etc.

then I would move to eod dosing.

But if the cat is clinically well, a T4 level of 8 nmol/L isn't really significant.

Re: Amusing comment in BSAVA Formulary

Martin Jones — Tue, 23 Mar 2010 09:29:32 GMT

Surely, under the rules of the cascade, you can switch to generic carb? There's no veterinary licensed alternative to giving 5mg daily, so end of problem. Happy old lady, happy cat, small victory over the pencil pushers.......

Re: Amusing comment in BSAVA Formulary

Mike Martin — Tue, 23 Mar 2010 09:17:10 GMT

The cat had originally been put on Felimazole, but the cat did not get on with it apparently. Going to eod seems like an option, so just wondering about everyone else's experiences.

Re: Amusing comment in BSAVA Formulary

Michael Woodhouse — Tue, 23 Mar 2010 00:13:54 GMT

If I remember correctly NeoMercazole were 5mg tabs, maybe a carry over before we had the Vidalta?

Re: Amusing comment in BSAVA Formulary

nikki — Mon, 22 Mar 2010 23:57:50 GMT

i'm guessing they didn't think anything would need less than 10mg as it's fine to go up in 5mg increments, but impossible to go down. I've tended to switch to Felimazole 2.5mg SID in these ones.

Re: Amusing comment in BSAVA Formulary

Michael Woodhouse — Mon, 22 Mar 2010 21:50:44 GMT

Add just a little bit of Soloxine...............

Re: Amusing comment in BSAVA Formulary

Hanna Bennett — Mon, 22 Mar 2010 19:40:12 GMT

after i'd picked myself back up off the floor from laughing....

we've seen a few 'too well controlled' cats on Vidalta. we've tried every ither day dosing as the only way of reducing the dose. seems to make for a happier cat, though i worry about the up/down effect this has on the thyroid level. other option being switch to felimazole.

Re: Amusing comment in BSAVA Formulary

Vikki Halliday LLB — Mon, 22 Mar 2010 19:13:06 GMT

[quote user="Mike Martin"]

In the absence of a 5mg tablets - how does one do this?

[/quote]

You could give it a negative amount of the 15mg tablet, thus reducing the dose with a positive dose of 10mg to 5mg.

Simples!