Benign thyroid adenoma
Over 98% of feline hyperthyroidism is caused by one or more benign nodules on the thyroid gland that produce excess thyroid hormone autonomously.
Cat Condition
Cat Hyperthyroidism — Online Vet Management
Hyperthyroidism is the most common hormonal disease in older cats. Get expert symptom assessment, prescription management guidance, and a personalised care plan from a licensed online vet.
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Understanding cat hyperthyroidism
Expert online care for cat hyperthyroidism
Licensed vet assessment of hyperthyroid symptoms via secure video
Same-day appointments — most seen within 1–3 hours
Medication management guidance and prescription support when appropriate
$65 flat fee — no memberships or hidden charges
Your cat stays calm at home during the consultation
Coordination with your in-person vet for bloodwork and monitoring
Feline hyperthyroidism is an overproduction of thyroid hormone, usually caused by a benign thyroid tumour. Excess thyroid hormone accelerates metabolism, affecting the heart, kidneys, digestive system, and overall quality of life.
While definitive diagnosis requires bloodwork, our licensed vets can assess clinical signs via video, guide you on next diagnostic steps, and help manage an existing hyperthyroid diagnosis with medication adjustments and monitoring plans.
Common signs of cat hyperthyroidism we can help with
- Weight loss despite increased appetite
- Increased thirst and urination
- Hyperactivity or restlessness
- Poor coat condition or excessive grooming
- Vomiting or diarrhea
- Rapid heart rate
- Increased vocalization
- Weakness in advanced cases
What causes cat hyperthyroidism?
Hyperthyroidism in cats is well understood, though the exact trigger for thyroid nodule growth is still being studied.
Age-related risk
Hyperthyroidism almost exclusively affects cats over 8 years old, with peak incidence between 12 and 13 years of age.
Environmental factors
Some studies link exposure to certain flame retardants (PBDEs) in household dust and canned cat food to increased thyroid disease risk, though research is ongoing.
How our vets diagnose it online
Our vets evaluate hyperthyroidism through clinical symptom review and guide you on the blood tests needed for confirmation.
- Assessment of weight trends, appetite changes, and behavioral shifts on video
- Review of heart rate, coat quality, and overall body condition
- Discussion of vomiting, diarrhea, thirst, and urination patterns
- Guidance on total T4 blood testing and follow-up thyroid panels
- Coordination of treatment plans once hyperthyroidism is confirmed by your in-person vet
Treatments we may prescribe
Based on your cat's assessment and diagnosis status, our licensed vets may recommend:
Methimazole (Felimazole) — daily oral antithyroid medication
Transdermal methimazole for cats difficult to pill
Prescription renal or thyroid-support diet
Heart rate and blood pressure monitoring guidance
Referral for radioactive iodine (I-131) therapy — curative option
Surgical thyroidectomy referral when appropriate
Regular T4 bloodwork scheduling and dose adjustment plans
All medications are prescribed only when clinically appropriate by a licensed veterinarian and dispensed through our FDA-compliant pharmacy.
Preventing cat hyperthyroidism
Schedule annual senior wellness bloodwork starting at age 7–8
Monitor weight and appetite closely in older cats — changes are early warning signs
Maintain a balanced diet appropriate for your cat's life stage
Keep regular vet visits to catch thyroid changes before complications develop
Discuss thyroid screening if your cat shows unexplained weight loss or increased hunger
Why pet parents choose TelaVets
Licensed DVMs Only
Every consultation is with a licensed Doctor of Veterinary Medicine — not a chatbot or technician.
$65 Flat Fee
One transparent price covers your full video consultation and treatment plan. No facility fees or surprise charges.
Same-Day Appointments
Most pet parents are connected with a vet within 1–3 hours of booking, 7 days a week.
Next-Day Prescriptions
When medication is appropriate, prescriptions are issued same-day and delivered to your door next business day.
Stress-Free Home Visits
Your pet is assessed in their calm home environment, which often makes symptoms easier to evaluate on video.
Secure & Private
Encrypted video calls and HIPAA-compliant records keep your pet's health information protected.
How TelaVets works
Book your consultation
Pick a same-day or upcoming slot — appointments available 7 days a week.
Connect with a licensed vet
Your vet assesses your pet via secure video, asks detailed questions, and reviews their history.
Get your treatment plan
Receive a diagnosis, personalised care plan, and same-day prescriptions delivered next-day.
What Our Pet Parents Say
Join thousands of happy pet parents who trust TelaVets for their furry family members care
"Fantastic service! My dog gets extremely anxious at the vet, so having a virtual appointment from home was a game-changer. The vet was kind and helpful, and getting his medication delivered the next day made the whole process stress-free and more affordable than going to the clinic."
DL
David Long
Verified Pet Parent
"The vet I spoke with Dr. Ricksaw was very knowledgeable and nice. He took the time to go through all of my options and ideas with me. Reassured me that all we were doing for my dog's anxiety was good and gave me a couple of new ideas as well."
CH
Courtney Hughes
Verified Pet Parent
"I would definitely use them again. I'm cat sitting for 2 weeks and needed to see a vet. I was so worried about the kitten. I used Televets the cat got his prescription and all is good. Excellent service!"
M
Maria
Verified Pet Parent
"Dr Corey was amazing, helpful, compassionate and well versed. I would highly recommend using this. It is so much easier than trying to get a 3 legged cat into a carrier, take him to a doctor's office and stress him out, love it!!!"
JG
Jackie Gardner
Verified Pet Parent
"I had a TelaVets Zoom appointment and couldn't be more impressed. They spent a lot of time with me, walking through every option to help my cat recover from her skin issues. I've also reached out about getting her medication through Chewy.com, and they've been extremely helpful every step of the way."
LD
Lara Durand
Verified Pet Parent
"Dr. Moppin is a dedicated professional who truly cares about his furry patients and their humans, too! It's such a relief that Dr. Cole took the time to listen and address my concerns thoughtfully. Thank you for taking care of our cats 🐈"
WW
Wanida Walker
Verified Pet Parent
"This service was amazing! My dog ran out of his medication before we were able to get in with a new vet and they were able to help get him a short term supply quickly. I would definitely use them again!"
AT
Amanda Tobias
Verified Pet Parent
"Knowledgeable, professional caring provider! Needed urgent Vet care on a weekend and TeleVet kept me from having to miss a day of work, as well as half the price of local weekend options. Thank you!"
JH
Jana Humble
Verified Pet Parent
"Dr. McGinnis was very knowledgeable and listened to my cat's issues. She addressed the problem and may have come up with an answer after 5 years of trying with local vet practices."
MK
Marilyn Kerr
Verified Pet Parent
"Fantastic service! My dog gets extremely anxious at the vet, so having a virtual appointment from home was a game-changer. The vet was kind and helpful, and getting his medication delivered the next day made the whole process stress-free and more affordable than going to the clinic."
DL
David Long
Verified Pet Parent
"The vet I spoke with Dr. Ricksaw was very knowledgeable and nice. He took the time to go through all of my options and ideas with me. Reassured me that all we were doing for my dog's anxiety was good and gave me a couple of new ideas as well."
CH
Courtney Hughes
Verified Pet Parent
"I would definitely use them again. I'm cat sitting for 2 weeks and needed to see a vet. I was so worried about the kitten. I used Televets the cat got his prescription and all is good. Excellent service!"
M
Maria
Verified Pet Parent
"Dr Corey was amazing, helpful, compassionate and well versed. I would highly recommend using this. It is so much easier than trying to get a 3 legged cat into a carrier, take him to a doctor's office and stress him out, love it!!!"
JG
Jackie Gardner
Verified Pet Parent
"I had a TelaVets Zoom appointment and couldn't be more impressed. They spent a lot of time with me, walking through every option to help my cat recover from her skin issues. I've also reached out about getting her medication through Chewy.com, and they've been extremely helpful every step of the way."
LD
Lara Durand
Verified Pet Parent
"Dr. Moppin is a dedicated professional who truly cares about his furry patients and their humans, too! It's such a relief that Dr. Cole took the time to listen and address my concerns thoughtfully. Thank you for taking care of our cats 🐈"
WW
Wanida Walker
Verified Pet Parent
"This service was amazing! My dog ran out of his medication before we were able to get in with a new vet and they were able to help get him a short term supply quickly. I would definitely use them again!"
AT
Amanda Tobias
Verified Pet Parent
"Knowledgeable, professional caring provider! Needed urgent Vet care on a weekend and TeleVet kept me from having to miss a day of work, as well as half the price of local weekend options. Thank you!"
JH
Jana Humble
Verified Pet Parent
"Dr. McGinnis was very knowledgeable and listened to my cat's issues. She addressed the problem and may have come up with an answer after 5 years of trying with local vet practices."
MK
Marilyn Kerr
Verified Pet Parent
Related resources
Helpful reading and services from the TelaVets team.
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Frequently asked questions about cat hyperthyroidism
Yes. Our licensed vets can assess symptoms of hyperthyroidism via video consultation, review your cat's history, and provide a clinical assessment with a treatment plan.
Treatment depends on severity and cause. Our vets will create a personalised plan which may include prescription medications, dietary changes, or at-home care instructions.
Same-day appointments are usually available. Most pet owners are seen within 1–3 hours of booking.
Yes. If medication is clinically appropriate, our licensed vets can issue prescriptions same-day, with next-day delivery to your door.
If your cat shows severe distress, inability to breathe, uncontrolled bleeding, or sudden collapse, seek emergency in-person care immediately. For other concerning symptoms, an online consultation is an excellent first step.
Get expert help for your cat's hyperthyroidism today
Same-day appointments — $65 flat fee — licensed vets