Recently Diagnosed With Hyperthyroidism - So Many Worries

confuzzled

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My 14-year-old cat Tigger was recently found to have hyperthyroidism and I could just use some advice from others who've had to deal with this. I adopted him when he was 8 and he's been the best kitty. I'd never heard of it before, although the vet told me it's very common. I've been reading a lot about it since the diagnosis. I suspect it's what killed my parents' cat last month (my parents didn't like to take their cat to the vet so I'm guessing).

Anyway, the vet prescribed me methimazole for him, and I decided to go with the ear gel kind because giving Tigger medicine is extremely difficult. Unfortunately I discovered when picking up the medicine that it's also expensive - $69 a month! I'm not sure how long I can keep that up with all my other expenses (big rent increase last month) but for now I'll just do my best and budget harder somehow. The vet prescribed him 3.5 mg twice a day. Is that low? It doesn't seem to be doing much yet but he's only been on the medicine a week as of today. But I'm also worried he might not tolerate it. Although we were doing fine the first few days - I made him some cooked chicken for positive reinforcement - he now meows when I give him the medicine. I'm worried it could be causing a reaction or hurts his ears. They don't look any more pink than usual to me (I am visually impaired though) but his ears are naturally very pink due to his coloring (he's a marmalade). I did notice him scratch at his ears once, but he also sleeps with an ear against the mattress, so maybe it's only bothering him right after he gets it. How can I tell if I should stop the ear gel? I also remember flavored liquid medicine was an option, and am wondering if I should have gone with that, or should ask about it when I see the vet in a few weeks. Has anyone had any experience with that? Maybe I could mix it into his food? Shoving medicine into his mouth is pretty much impossible because I'm on my own.

I was also wondering: is it safe to give him fish? He's a tuna fiend, but from what I've read maybe fish isn't a good idea because it has iodine. But if I were to get the liquid and mix it into food, fish would be the easiest to get him to eat and it's also helpful when he's being fussy about food. Is there any kind of food that's best to give him? I've tried to feed him grain free wet food most of the time I've had him, but maybe something else would be better?

Another question I have (so many!) is if anyone has a hyperthyroid cat who ISN'T ravenous? Because he's been fussy about his food for several months now, although he's also definitely hyper. He stopped eating his favorite Wellness turkey, and I was wondering if maybe they changed the recipe when they changed to the new labels. Before the hyperthyroid diagnosis I assumed he was turning kittenish because his diet had finally started working (he's been overweight since I adopted him 6 years ago). So ironic I have to worry about him losing weight when I was worried about him gaining more for so long.

After I adopted him I learned that Tigger has an enlarged heart and a heart murmur. I worry now about how that combined with the hyperthyroidism could affect his life expectancy. The vet said not to worry, but maybe she was trying to be kind?

I'm also feeling so much guilt about this because when I read up on potential causes of hyperthyroidism. I discovered that apparently the bigger cans of food (12.5 oz) often have BPA in them which may be a cause - and I was using the bigger cans because it came out cheaper. And then I read hyperthyroidism could be caused by flame retardants in things like carpeting or foam - and one of his favorite places to sleep is on this decades old armchair that's been leaking stuffing that I've been meaning to replace. I research everything, why didn't I ever think to research what cat food cans are made of, or what chemicals are in old foam? I just feel so crazy guilty. Does anyone else and how do you stop? (And I still have most of a case of some of those big cans, can I even use those up now? Or would using them make his thyroid worse?)

Sorry this is so long. I love my cat because he's the best, snuggliest cat ever who seems to have decided that his job in life is to purr me to sleep every night, so hearing that he has this disease has really disturbed me. Thank you for reading and any advice or comments are appreciated...
 

verna davies

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My cat was diagnosed with hyperthyroidism when she was 14. Symptoms different to your cat. Lost a lot of weight, always eating, drinking lots and not hyper. I had her on tablets daily and monthly blood tests until she was stable ( 3 tests in all) then every 6 months. It is an expensive illness but I found that buying the medicine on line was a lot cheaper. It is important that your cat gets the correct amount of medicine every day to keep him stable so I don't know if mixing it with his food would work. Maybe someone else on the site has had experience with the medicine you have. I know it is distressing but cats with this illness can live many years.
 
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confuzzled

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Thanks for your comments. How did you convince your vet to give you a prescription to be filled online? I'm not sure why they would do that since it takes money away from their practice, but it would certainly be helpful.

He really didn't want his ear cream tonight.
 

verna davies

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It is common practice here in the UK. There is a fee (of course) for the prescription. I used to pay £90 ($118) for three months worth of tablets in the vets but paid £90 +£12 prescription for 6months on line, nearly half price.
Is there any way you could give Tigger the tablets. I had a bit of a battle but used to wrap a piece of th in meat around the pill. Eventually she accepted that she had to have them.
 

Geoffrey

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I am a physician specialising in human internal medicine, not a vet, but I have considerable experience of managing thyrotoxicosis in humans. Methimazole is a relatively new treatment for an overactive thyroid in both humans and felines, it acts by blocking the production of the thyroid hormone but the patients, human and felines, have to be carefully watched by their physician or veterinarian as too much medication can cause an underactive thyroid gland and a condition called myxoedema.

Methimazole is an effective treatment but in view of the cost of the medication and the need to continue this medication over a long period you may wish to discuss the use of other forms of treatment with your vet. This includes treatment with radioactive iodine (RaI). RaI will be taken up by the thyroid gland and, after the dose necessary to return the thyroid production to normal has been determined, may not need to be repeated and can possibly give a permanent cure. Unfortunately a complication of RaI can be giving too much RaI and making the patient myxoedematous - requiring long term thyroid hormones. This can be given by mouth and thyroid hormone is certainly cheaper than Methimazole. However the cost of RaI will be high so you have to discuss this option and the RaI prognosis with your vet.

You asked about fish in the diet. I am not aware of any reason not to give fish to human patients but cats are somewhat different to humans (!) and you should discuss Tigger's dietary requirements with your vet.

The presence of an enlarged heart means that the heart muscle is weaker than it should be to pump the blood around the body. Causes include disease of the heart muscle itself, high blood pressure, an obstruction to the heart valve or leakage of the valve.

A murmur is the noise heard through a stethoscope when a valve is leaking or damaged and causes an eddy in the flow of blood. The presence of an enlarged heart and a murmur may be due to the thyrotoxicosis itself as an overactive thyroid can cause cardiac complications but I cannot give you any advice about the significance of these conditions in Tigger's particular case. You can ask your vet to elaborate on what she has already told you.

Finally I must caution you about researching any disease through the internet. There is no guarantee that what you may read will be accurate and you are very likely to come across a website that is quite incorrect and may be dangerous.

In particular be very wary of so-called "alternative", "homeopathic", "natural", "herbal" remedies and avoid like the plague treatments that are associated with the word "wellness"!

With all best wishes to you and Tigger,
Geoffrey
 
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