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Ask the Vet About Hypothyroidism

Dr. MichaelDym
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While efforts are made to answer all questions as quickly as possible, if an immediate answer is required or if your pet is in need of urgent or emergency care, contact your pet's veterinarian immediately.

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Showing 1 - 15 of 20
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1
DateApr 28, 2021
CategoryHypothyroidism
Pet Typenull
TopicThyro-Tab Dosing
vet-qa-signature
Question:

Good afternoon, we recently filled our dogs prescription through 1-800-PetMeds for Thyro-Tabs. I am concerned about the dosing of the medication and wanted to get advice. Our dog weighs 80lb and was given Thyro-Tab 0.7mg twice daily (1.4mg/day). From my understanding of the package insert, the dose should be initiated at 0.1 mg/10 lb per day. After less than a week of being on the higher dose, he is exhibiting symptoms that I feel are related to the high dose- panting, excessive urination, excessive thirst, rapid heart rate. Could you please let me know your thoughts on this dosage? Thank you!

Answer:

From our website: "The usual dose in dogs is 0.1 mg per 10 lbs of body weight given TWICE a day" so he is getting slightly LESS than his actual dosage, which is where we often start them but it depends on his bloodwork and symptoms so consult your veterinarian for the best advice about his dosage because s/he has access to all of that information. BUT, if he continues with those symptoms, all dogs are individuals and have different severity of disease, so he may need a lower dosage.

2
DateMar 13, 2021
CategoryHypothyroidism
Pet Typenull
TopicMedicine
vet-qa-signature
Question:

How to know if my dogs on too much medicine. Until I can get him to the vet

Answer:

If he is taking medication for hypothyroidism: You can't really tell without a blood test, but in general, they will lose weight very rapidly and pant excessively if the dosage is a little too high.

3
DateJan 21, 2021
CategoryHypothyroidism
Pet Typenull
TopicCat methimazole t4 too low on. Methamazole
vet-qa-signature
Question:

11 year old Cat's t4 level has dropped to .04 from 11.4 on 5mg methamazole 2x daily over past year & she's started loosing weight recently. Vet suggests cutting methamazole dosage to 2.5 2x daily. Retest in 3 weeks. My thought is stop dosage for 3 weeks. Thoughts?

Answer:

Oh no, if she was definitively diagnosed as hyperthyroid to begin with, you would not want to stop it abruptly like that. I would really need to see all of her bloodwork to properly advise you though so your veterinarian is the best one to discuss that with.

4
DateOct 22, 2020
CategoryHypothyroidism
Pet Typenull
TopicGetting meds
vet-qa-signature
Question:

Do I need to have my pet checked for refills on this medication ? I am out and she is already starting to have skin issues, plus I am disabled and have little money to get her and my male checked. If you are a vet and know how serious this is for her can you not write it?

Answer:

No, legally in veterinary medicine, a face-to-face meeting has to occur to be able to write a prescription. Call or email the veterinarian that saw her last and let them know your financial constraints and see if they can work with you.

5
DateOct 9, 2020
CategoryHypothyroidism
Pet Typenull
TopicMedicine concern
vet-qa-signature
Question:

My dog is on dexamethasone, she also has an under active thyroid which she takes medicine for. I was told that dexamethasone could interfere with thyroid test results. My question is, can dexamethasone interfere with the thyroid function? Is it possible for her thyroid to become over active with even being on her thyroid medication?

Answer:

It really depends on the dosage and how much your dog weighs. In general, at a relatively low dosage, it won't affect the thyroid - it will affect the adrenal gland and testing associated with the adrenal gland

6
DateMay 7, 2020
CategoryHypothyroidism
Pet TypeDog
TopicMedication
vet-qa-signature
Question:

I have a Cavalier King Charles Spaniel, 8 yrs.old, female and she has been diagnosed with hypothyroidism and prescribed 0.3 mg of levothyroxine twice a day. She drinks a lot of water (always has) and weighs about 20 lbs. very active and eats well. Never been overweight. Do I give her a morning pill and wait for a half an hour to feed her like humans and if I give her the second pill at evening, do I give it to her about a half an hour after her meal time or with a meal? She has a skin disease which started this process and I have medicated shampoo for her to be bathed in. She has been on medication for 2 months now and I was not told when to give her the medication, but assumed it was like my thyroid situation but I only take a morning pill. Need clarification please. Thank you.

Answer:

With or without food doesn't seem to matter for them with thyroid medication - you can check with the manufacturer of your specific brand to be 100% sure.

7
DateMar 19, 2020
CategoryHypothyroidism
Pet TypeDog
TopicRash all over
vet-qa-signature
Question:

We cant get her in the vehicle because medical reasons can we get thyroid medication online

Answer:

In veterinary medicine, a veterinarian that has met her in person will have to approve the prescription, so call or email her veterinarian - most have some kind of delivery system or carry out service where you could just pick it up or they can send us a prescription and we will send it to you, so lots of options right now because of the coronavirus.

8
DateFeb 18, 2020
CategoryHypothyroidism
Pet TypeDog
TopicDander
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Question:

My dog has been on thyroid meds for 6 wks, bloodwork was checked after one month and levels are good. He seems to be responding well, loosing some needed weight, is generally happier. When will the excessive dander stop?

Answer:

That will take a few more weeks. Consider adding some Omega 3 fatty acids to his diet to help with the dander, like this product: https://www.1800petmeds.com/Welactin+Omega+3+Canine-prod11837.html

9
DateJan 5, 2020
CategoryHypothyroidism
Pet TypeDog
Topicseizures or fainting episodes
vet-qa-signature
Question:

My pug was diagnosed in August with low thyroid and was put on Levothyroxine. Recently, she started having these episodes, we weren't sure if she was fainting or if it was a seizure. She acts totally fine after the episode has happened. We took her to our vet, he did an x-ray and everything looked good, he detected maybe a slight murmur. We had an ultrasound and EKG done at a different vet, there was a mild enlargement of the right ventricle didn't seem concerned. There was also a low grade electrical block so want to follow up with a 24 hour holter/monitor. We have been waiting to get to our vet, they haven't reviewed yet, which has been now almost a week. This morning she had another episode, this time to us, looked like a seizure. So we think that is what has been happening all along. I am bringing her to my vet tomorrow, hopefully. Looking at her bloodwork, the other vet also noticed her liver enzymes were elevated back in August, so recommend more blood work to be done. Do you think the seizures are related to the liver? Or do you think it is related to her heart?

Answer:

That's impossible for me to really guess but, yes, repeating the blood work will tell you about the liver and the Holter monitor will probably tell you about the heart.

10
DateNov 11, 2019
CategoryHypothyroidism
Pet TypeDog
TopicCorrect Dosage
vet-qa-signature
Question:

My pets dosage is 200MCG on her prescription bottle but, I don't see that as an available dosage on the website. What dosage is comparable to what I need to give her?

Answer:

I don't know what medication you are referring to but most medication for hypothyroidism (that's the category you chose) is measured in mg = milligrams like this product: https://www.1800petmeds.com/Levothyroxine+Sodium+Tablets+%28Thyro+Tabs%29-prod12031.html

11
DateOct 20, 2019
CategoryHypothyroidism
Pet TypeDog
Topicthyroid testing
vet-qa-signature
Question:

Is T-4 enough?

Answer:

A TSH with a T-4 is ideal. Here is a good article, written by another veterinarian, from a site that I trust, about hypothyroidism: https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4952004

12
DateSep 12, 2019
CategoryHypothyroidism
Pet TypeDog
TopicPanting
vet-qa-signature
Question:

Is there anything that can relieve the panting my dog experiences frequently from his thyroid disease?

Answer:

Have his thyroid levels checked - he may be taking a little bit too much of the supplement - that is the most common reason they will pant, but there are other reasons as well, so having your veterinarian check him out when they run those blood levels is ideal as well.

13
DateAug 5, 2019
CategoryHypothyroidism
Pet TypeDog
Topichypothyroidism
vet-qa-signature
Question:

Laboratory diluted blood sample for test results of CBC, total chemistry panel, T 3, T 4 and free T 4 due to inadequate specimen. No T S H testing completed. Results showed T 4 @ 0.5 and free T 4 at 7.9. Does blood dilution affect blood test results and w/o T S H testing don't really know if dog needs medication?

Answer:

Ideally, I would submit another adequate sample, mainly to get a TSH to be 100% sure medication is needed.

14
DateJun 3, 2019
CategoryHypothyroidism
Pet TypeDog
TopicHair loss on his back
vet-qa-signature
Question:

what should I give him to stop hair loss ibstarted to notice after I gave him a bath then 2 weeks later I notice more an more hair falling off on his back he seem healthy he drinks plenty of water eats twice a day walked every afternoon about 2hrs is there any thing you can prescribe for my doberman

Answer:

There are many things that can cause hair loss, so you really need for your veterinarian to examine him and run some quick tests to make a plan for his treatment. You filed your question under hypothyroidism and that is certainly something they will want to check for.

15
DateMay 19, 2019
CategoryHypothyroidism
Pet TypeDog
TopicLiver damage
vet-qa-signature
Question:

I have a 70 pound 11 year old female lab who has been on levothyroxine .6 mg every day for the past two years. She has shown increase signs of anxiety, and hair loss. I started the levothyroxine because of the hair loss and anxiety, it just seems to have gotten worse. her blood count is normal on the medication. But her liver enzymes came back high this year on the last blood test. Could this levothyroxine because liver issues?

Answer:

Possibly, but if her T4 isn't elevated that would be unusual. If her T4 were elevated, her dosage might be a little high, but since it's not, your veterinarian might want to run some more tests on her to see what is going on with her liver.

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