Tell Us What You Think

Hyperthyroidism is one of the most common diseases veterinarians see in senior cats, but most cat parents don't know they have real options once a diagnosis comes in. In this episode of Tails of Truth, Dr. Angie Krause and veterinary nurse JoJo walk through the full picture: the symptoms that should prompt a T4 blood test, why the test is so straightforward compared to human thyroid testing, and all four treatment paths available today, methimazole in pill, cream, or melt form, radioactive iodine therapy, a prescription iodine-restricted diet, and surgery. They also cover a conversation most cat parents aren't prepared for: why treating hyperthyroidism often uncovers underlying kidney disease, and why that's expected rather than a red flag. If your cat is losing weight, acting ravenous, or yowling at night, or if you're already managing a hyperthyroid diagnosis, this episode covers the questions to ask your vet next.

Key Takeaways

• Hyperthyroidism is one of the top four most common diseases in senior cats.
• Symptoms include weight loss, increased hunger, vomiting, night yowling, hyperactivity, and a greasy coat and it can mimic kidney disease, IBD, or diabetes.
• Diagnosis is a single blood test (total T4), but not every senior wellness panel includes it automatically — ask your vet to add it if your cat is over 8.
• There are four treatment paths: methimazole (pill, transdermal cream, or compounded melt), radioactive iodine therapy, a prescription iodine-restricted diet, and surgery (rarely performed anymore).
• Radioactive iodine has roughly a 90% cure rate but requires a week-long hospital stay and two weeks of limited contact at home, and typically costs $2,000–$3,000.
• Treating hyperthyroidism often reveals underlying kidney disease that was masked. This is expected, not a sign something went wrong.
• Cats on methimazole need bloodwork rechecked every 4–6 weeks initially, then every 6 months, to confirm correct dosing and monitor liver and kidney values.
• Dr. Angie doesn't always treat mild, asymptomatic elevations in T4. She monitors instead, due to past cases of methimazole causing negative side effects in cats that didn't need it yet.

Soundbites

"This is one place where Western medicine actually is pretty effective." — Dr. Angie

"Pilling your cat every day... it's a relationship breaker for some people." — JoJo

"I could talk about hyperthyroidism in cats all day long, and in fact I do." — Dr. Angie

"Your vet is gonna want to recheck blood work in four to six weeks. This is not a money grab." — JoJo

"You're going to get so much more radiation from that airplane than from a cat." — Dr. Angie

"It sounds terrifying. And if you're holistic in nature, make this make sense." — JoJo

• Follow us on Instagram, Facebook, TikTok and YouTube
• Schedule your personalized one-on-one consultation with Dr. Angie
• Shop my favorite CBD.

Please subscribe and review! xoxo Dr. Angie & JoJo