Cat Hyperthyroidism, Kidney and Constipation Issues

on November 22, 2014
Posted in Cats


Hi Dr. Jan,
I spoke to Tyler on the petwellbeing site and he suggested I send you an email.

My 13 year-old cat Dolce seems like she is fine to me but was recently diagnosed with feline hyperthyroidism.

She is a pampered in-door housecat who only drinks reverse osmosis purified water and Organic Paul Newsman’s cat food (albeit mostly the hard food because I thought it was good for her teeth.)

I started feeding her a lot of cooked chicken, which our holistic vet for our dog said is good for her but I know I probably overdid it (& their systems are sensitive and the food has to be balanced) because all of a sudden she got constipated. I took her to the vet for the constipation and they said she has hyperthyroidism T4 level is 5.6. This was about 3 weeks ago.

They gave her an enema. I switched to Paul Newman’s canned food and mix it with water, a wonderful organic pro-bi mixture (which also contains organic aloe vera, organic peppermint, organic dandelion extract, organic ginger extract). I have given her organic olive oil, organic coconut oil, laxatone to try different things. Pumpkin does not seem to do anything.

I took her to the vet for another enema a few days ago and fluids and she looked and acted great. She went to the bathroom on Day 1, Day 2, Day 3 and Day 4 is today and she did not go again.

The vet prescriped .5 mg of meth, which I have reluctantly given her twice a day for about a month now. My vet wants me to give her Miralax, which to me looks very unhealthy. I dread giving it to her. I want to get her off medication.


Do you have any diet recommendations and I saw a constipation remedy on petwellbeing?

Dose of methimazole is 2.5 mg twice daily.

Do you think I can stop giving her methmazole abruptly and start giving her:
Thyroid Support Gold – Cat Hyperthyroidism Support

Tyler said I could have you explain the benefits of this product to my vet. Because you are a vet, you might have more credibility in their eyes.

Also, I am at my wit’s end on the constipation issue.

Can you recommend something for that? I want to switch her food eventually if I can find a high quality human grade or organic that is better than Paul Newman’s. Do you have any suggestions?

Also, Tyler said you had a recipe for homemade cat food for hyperthyroidism.

Thank you for any guidance.

My cat seems fine. I want to build her health not give her medication.

Sheri Strykowski


HI Sheri
I would try the Smooth BM Gold but I would also wonder about this cat’s kidneys as many times older cats have underlying kidney issues and need extra fluids. I would use a canned food with this cat–homemade hyperthryoid diets for treatment of hyperthyroidism really don’t work. Miralax is not such a horrible thing–you could also try lactulose.
If you switch from the medication to TSG I would replace one dose of the medication with one dose of the herb and do this for 1 month and see how the cat is doing. It works well in some cats and not in others so you never know until you try it.

I would be happy to speak with your vet if he or she wishes to contact me.

Best to you,
Dr Jan

Read also: Does my Old Cat Have Kidney Disease?

Our Expert

Dr. Janice Huntingford
Janice Huntingford, DVM, has been in veterinary practice for over 30 years and has founded two veterinary clinics since receiving her Doctor of Veterinary Medicine at the Ontario Veterinary College, University of Guelph. She has studied extensively in both conventional and holistic modalities. Ask Dr. Jan

Related Product

Thyroid Support Gold is an all-natural holistic pet product for hyperthyroidism in cats. Safely remedy your cat's thyroid ailment symptoms.

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