Ask the Vet About Hyperthyroidism in Cats

My 15 year old cat was just diagnosed with hyperthyroidism. Went in for a UTI… through blood testing, I found out she had hyperthyroidism. They put her on Methimazole 5 mg. She is so lethargic, and very nauseous or cramping. More leaning towards nauseous. She is so miserable that I can’t give her the meds. I did it for 3 days and my cat looks as though she is going to die (That is not rhetorical). She is drinking, trying to eat, urinating and defecating. Is there an anti nausea med that I can give her or……??? Could really use some advice. Thank you.🙏🏼

My cats been diagnosed with hyperthyroidism. He's taking generic methimazole and has become very lethargic. He's very weak. My vet says he's going through some type of detox/withdrawal from having his thyroid level going from high to the normal level now. Is this true?

Need some answers!

Our cat requires a cream (Methimazole 2.5MG) for a thyroid problem. The instructions say NOT to get the cream on your skin. Years ago my thyroid was irradiated, essentially I have no thyroid. Can the cream still have an effect if it gets on my skin? Thanks!

13 yr old cat very bony despite great appetite and energy

Her prescription is on file. Why is she now urinating copious amounts? Is her prescription too much or too little? She doesn’t play much now. Her balance is way off, and she cannot focus easily. I’m very worried her medication may be off.

My now 19 year old cat has been treated for hyperthyroidism with transdermal Methimazole for over 3 years now, and her ears are starting to show it. The skin on the inside of her ears gets so red, and her ears get so warm, and she scratches at them. What would work to clean/flush out her ears, to wash off the dried Methimazole, to apply to the irritated area to soothe her skin?

Is this medication can be purchased with you

Do you carry the twist-a-dose applicator for putting methimazole (sp?) gel in my cat's ear? Or something like it, where it gives the correct dose automatically?

I have a prescription from my vet & I’m wondering how to get the information to you.

My cat was estimated to be 6 years old when I adopted him from a shelter and shortly afterwards he was diagnosed with hyperthyroidism. He's now 11 years old. We tried methimazole first but he would vomit it up shortly after administering it. Vet switched him over to Hill's prescription diet dry food y/d which worked for a while but with vomiting that worsened over time. The whole time he had very loose, watery stools. Switched to the Hill's y/d can food. The vomiting slowed for a while then became more frequent again. Stools continued to be loose. It was getting so bad that he was sick daily. He'd howl and vomit, and try unsuccessfully to make it to his litterbox. I could tell he was in pain and distress. I suspect he has IBD as well. He has gone from a healthy 12 lbs when I adopted him, to less than 8 lbs. He is so skinny his bones are protruding, and he sleeps all the time. My last desperate attempt to help him was to give him a raw food diet consising of organic chicken thighs, hearts, liver, and supplements recommended by a holistic vet. He did amazingly well at first. Solid stools, no more vomiting, and became playful and energetic. Sadly, this only lasted about a week. It's been 3 days now and he hasn't eaten. I'm out of ideas and cannot afford the radiodine treatment that could potentially cure him. I guess I need to know when it's time for me to let him go - to have him euthanized.

I accidentally gave my one cat the other cats felimazole, 2.5mg dose. She seems ok. What should I watch for?

What are the symptoms of a thyroid problem in cats?

Is there a transdermal compound that would deliver 2.5mg of Methimazole 2X per day? What would be the cost of a 30 day supply? This is for a 15 year old female cat. Thank you!

Seeking a second opinion, going to try to keep this brief! My 14-year-old cat Budder has hyperthyroidism and severe anxiety — he shakes, howls, etc. while being transported, in unfamiliar environments and around unfamiliar people. Tomorrow we plan on taking him to a friend’s house for a few hours while things are done in our apartment, but it seems likely that he has high blood pressure and I’m worried that the stress of transporting him + the new environment could cause a stroke or a heart attack. He started transdermal Methimazole last week after months of inconsistent treatment with tablets throughout which time he continued to show symptoms of hyperthyroidism. We’re still waiting for the results of urinalysis and bloodwork so we ultimately don’t know anything about the state of his heart and kidneys. We have Gabapentin that he was prescribed some time ago, before his hyperthyroidism diagnosis but some time after the onset of symptoms. He was still very stressed the last time he took it but it definitely helped and there were no complications. I realize this may be too much to ask of someone who has not examined him, but is Gabapentin more likely to help or harm in this scenario? Are there other medication options we should be exploring (ex: blood thinners, etc.)? Should we postpone the work in our apartment until we have all of his results back? Again, my biggest concern is the stress causing his blood pressure to sky rocket, causing a stroke or something of that nature. I can’t overstate the severity of his anxiety. He basically has panic attacks. Finally, if he does in fact have high blood pressure or a heart condition, what is the likelihood of extreme stress causing a medical emergency? Apologies for the many questions, just want to make sure I’m doing the right thing for him. Thank you.