Tell me about your hyperthyroid kitties, please!

My OG, Mick, has been a little off lately - losing weight, acting odd. With her being 19, and her history of histoplasmosis and kidney disease (which went into remission 10+ years ago), I was definitely worried.

Bloodwork was normal on all counts (vet said given her age, it was VERY good!), except she is definitely hyperthyroid. Vet wants to run it past the other vet in the morning just to be sure, as he’s more small-animal and also knows Mick well, but she’s 99% sure that’s what’s going on. (Teeth were also, in the vet’s words, VERY good for a 19 year old cat, no issues.)

So please tell me about how you care for your hyperthyroid cats. Vet mentioned she will need a pill a day, but what about diet? Currently she’s on Fancy Feast canned and Iams dry, which she eats well.

The pill doesn’t always work that well and only for shorter periods of time a few years max. Usually the kind of food you feed doesn’t matter. My 12yr old cat was hyperthyroid and I did the radioactive iodine treatment. She’s 100% cured and looks better than she has in years. It was $$$ and a bit stressful for her but well worth it. It might not be the option you want to go through with an older kitty. I do know someone who did it on a 19yr old kitty who is currently 21 and still trucking.

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Sammy was hyperthyroid and Snickers was too, until she had the radioactive iodine treatment.

They both ate a regular diet. Sammy did very well on the felizamole. He was on 2.5 mg until he died from cancer.

Snickers hyper t was harder to control plus she was impossible to pill. She was up to 7.5 mg of transdermal before the I-131.

She ate regular food too. She lost weight and never gained it back til after the treatment.

I don’t know that I would do that for a 19 year old but I can’t speak for anyone else. It certainly made a huge difference for her.

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Thanks - I was wondering about the radioactive iodine treatment. I’ll talk to my vet about it tomorrow. She’s 19, but a very healthy and feisty 19, and pilling her daily is not something I either look forward to or even think I could do (I was hoping to mix it in her food).

I’ve known several people that mixed it in their food. Mine were super picky and somehow knew if there was even a molecule of something foreign in their food. :joy:

I could sometimes sneak a portion of a pill or two in a temptation.

Sammy was such a good boy. He never fussed about his pill. Snickers acted like I was torturing her and after several days she’d hide from me when I approached her.

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If you’re in VA pm me and I can give you info about location for treatment

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Thanks, but I’m in KS. I imagine I’d have to take her either to K-State or OSU (OSU is closer to me).

I’ve had two hyperthyroid cats and they both did well on the transdermal med.

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Duncan is hyperthyroid and he is fine on the pill. He is 16 now. He could eat what he wants unfortunately, he has other health issues that force him eat special food. It’s a tiny little pill and is pretty easy to chuck down the throat. If they spit it out, you can’t miss the bright pink spot on the floor. Or the sofa. Or the bed. Or the coffeetable.

Hugs to Mick. And you must be doing something very right for her to still be a feisty happy kitty at 19.

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Both of my oldsters (who have since passed) were hyperthyroid. Both ended up well controlled on methimazole two times /day. I got through Chewy at $18.00/month.

One was a picky eater so I just pilled her with the little pill injector. She was fine with it. Scruff for like 10 seconds and shoot pill down the hatch. She tolerated that treatment and never got nasty about it (she was treated for a couple years before she passed).

The other one, I used Pill Pockets. I didn’t trust him to eat it with his food but he loved pill pockets. I had to pill him a few times that he managed to separate the pill from the pocket (they aren’t cheap) and he was good with that too.

Idaho does not allow the veterinary radioactive iodine treatment or at least, there is no vet in state that does it so I would have had to go out of state so the pills were it and both responded well with no side effects that I could discern.

Susan

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Thanks for the wise words, everyone!

Here’s the Mick, at 19.

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Pilgrim was diagnosed recently. Losing weight was his main symptom; he was as alert and interactive as always.

They offered me twice daily pills, the ear gel, or drugged treats. I picked the drugged treats in an effort to avoid the pills. The gel isn’t an option; I have the opposite problem myself and don’t want any incidental exposure to it, and I also have 8 cats indoors and worry about somebody else licking the spot before it dissolves.

The drugged treats have been a bit of an adventure. He started out eating them straight, then went off that. So the current plan is that I take Pilgrim alone into the guest room, smash up a treat in front of him, add a nice slice of Fancy Feast in front of him, and mash it all up while talking about how good it smells. He’s practically drooling by the time he actually gets the saucer.

This is only three months in, but the weight loss has stopped, he is gaining back, and he also is throwing up less. That’s something I hadn’t realized was a symptom, but in retrospect, he had moved from occasionally like cats do to several times a week. It’s clearly working.

He’s on Taste of the Wild, which is one of the few foods Pharaoh isn’t allergic to, so all indoors get it. He also is getting Fancy Feast just enough to hide the meds. One can lasts me four days roughly.

Of course, even though I try to pick times they are distracted, the other cats have figured out what goes on privately in the guest room, and there is always an annoyed audience when I reopen the door. Sorry, folks. I am not feeding eight cats Fancy Feast twice a day.

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I’ve had her since she was five weeks - she was abandoned by her mother. In retrospect, I realize that was because she is a Psycho Demon Cat and clearly her mother knew better than I did. :wink:

She survived histo at age 8, subsequent kidney damage (reversed) and has been quite happy and healthy ever since. Her half-sister died two years ago of a stroke at age 19, so I’m always worried about that, too. But she’s still feisty and loves food, and will allow exactly 3-8 pets before grabbing your hand and biting the ever-loving crap out of it, so . . . you know.

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She sounds like a spitfire. And spicy at 19 is a good sign. :joy:

She’s a beautiful girl.

One of the vets at the practice I go to poo poo’d the idea of Snickers having the I131, the one I prefer and try to get was all for it and said she had many clients that had been happy with it.

If Mick meets the criteria and you think she’d do well, do it. Snickers had to have blood work, chest x-ray and be off the meds for three days before the treatment.

Those were a long three days.

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Her kidney disease may not make her the best candidate. The hyperthyroidism elevates HR, BP, etc and can actually mask the extent ofvthe kidney disease because their blood us being filtered through the kidneys rapidly. Once you control the thyroid and its effects the kidneys can get worse, and there is no takie backsies from i131.

That being said it the i131 is better and definitely preferable to twice daily meds, regular blood testing, medication side effects etc.

Edit to add that most will do a medication trial to see how the kidneys and everything else responds first, if ok go ahead and pursue i131!

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I was just going to reply they had us do medication to prove that it helps and test kidneys and heart. They also did chest X-rays. Only when that was all clear did they recommend treatment. My kitty did develop a heart murmur from being hyperthyroid but it wasn’t too bad and since treatment has not gotten worse.

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The American Academy of Feline Practitioners has published guidelines for treating hyperthyroid cats. It includes excellent information on current recommendations for treating cats with concurrent kidney disease, as well as a discussion of the pros and cons of each treatment method. Here’s a link:

https://journals.sagepub.com/doi/10.1177/1098612X16643252?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed

I’ve had two hyperthyroid cats, and I treated both with radioactive iodine. The first cat couldn’t tolerate the methimazole, but she completely recovered with the radioactive iodine and eventually died from cancer. The second cat was cured of his hyperthyroidism but died shortly after due to congestive heart failure that I suspect was a separate issue, although the hyperthyroidism probably made it worse.

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Thanks, everyone, for the hints, tips, and links!

Mick has started the methimazole (pills, which she’s not keen about, but if I use really yummy canned and crush them up into very small bits, she eats them for now). I’d prefer the transdermal gel, but my vet doesn’t keep it in stock. They want her back in about 21 days to run bloodwork to see if its helping.

Re: kidneys - Mick’s kidneys seem to be completely normal, and have been for several years. They were totally within normal ranges (in fact, just about dead center of normal) during this last bit of bloodwork this week, so I’m hoping they stay that way.

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Chewy carries the transdermal if your vet will send in a prescription.

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Wow, normal kidneys at 19, very impressive! And I’m very glad she’s eating it in food. It makes it much easier if they’re not cooperative with pills.

What did the vet say about the I131 treatment?

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