Felimazole (methimazole) Tablets for Cats

By Felimazole
Rated 4.7463 out of 5 stars
Prescription Item


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$19.00Chewy Price
$18.05Autoship Price
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FREE delivery on first-time orders over $35
Usually arrives in 3-5 days
We'll collect your pet's prescription information at Checkout.

This item requires prescription approval.

Medications ship separately. Delivery times may vary.

About This Item


Felimazole treats feline hyperthyroidism, a commonly diagnosed disease in senior cats. The disease results in excess levels of thyroid hormone being produced in the thyroid gland. Symptoms can include weight loss, increased thirst and urination, vomiting, and excess activity.

Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.

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Play Video: Learn More About Felimazole From Our Team of Experts
Learn More About Felimazole From Our Team of Experts

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Total Price: $62.97

ReviewsWrite a Review

Rated 4.7463 out of 5 stars
134 Ratings
Would recommend to a friend

121 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 4 out of 5 stars
By Edna on Nov 22, 2023

I appreciate several things about Felizamole

My 18-year-old cat (well, one of my 18-year old cats--I actually have two 18-year-old cats!!!) has hyperthyroidism and is on Felizamole. While I was initially concerned to put her on a drug, and I had tried the one and only Rx food instead for months (which did work to control her thyroid, but she ended up very emaciated/thin on that food and I don't feel it is a diet that a cat can survive on long-term, as it is not species appropriate, in my opinion and experience), I ultimately ended up putting her on Felizamole. It works to control her T4, and what I appreciate so much, too, is that the pill itself is tiny and coated in such a way that she will readily eat it in a tiny bite of wet/canned food, so I don't have to struggle with attempting to pill her, and it makes for a much better quality of life for her, to just eat it in a bite of food instead of getting pilled every day. I push the pill into a tiny bite of wet food and make sure to surround the pill with the bite of food. She eats it right up, and then I give her the rest of her meal, no fuss, no muss! I also appreciate that the price of Felizamole is very reasonable. You do have to be careful not to handle it with bare hands if the coating gets wet and washes off (it is fine if the coating is on it), as apparently you could absorb some of the medication through your skin if that happens, though my vet said he doesn't think I should worry about that at all. Still, I'm careful to wash my hands after putting the pill into the bite of food, and if Harmony (my cat) happens to throw up, they say you shouldn't handle that with your bare hands, either. But she has been on Felizamole for a while now (many months) and it works, and it allows her to eat all the foods she loves and that are deeply nourishing for her. I'm a fan!

Rated 5 out of 5 stars
By Kathleen on Nov 28, 2023

First time using Chewy pharmacy; very pleased.

I was delighted to find out that Chewy carries my cat's prescription. It was very easy to order, get the prescription approved, and get it mailed to me. Chewy's shipping is always quick, and this was exactly what I needed. It came in a pill bottle, counted out, not in the original packaging, but that's OK with me. Chewy has always been trustworthy.

Rated 5 out of 5 stars
By Nancy on Nov 10, 2023

Great price

First off, the price was so much better than the vet price. Also, our vet doesn't carry felimazole. Secondly, our little "princess" Lilly, could taste the vet's pill and spit it out. We tried everything with no avail. Ah cats, don't you just love 'em. These are coated and with her favorite pill pocket flavor, she gobbles her meds without any after taste. Life is good.

Rated 5 out of 5 stars
By Carol on Nov 19, 2023

Problem solving

I ordered the methimazole tablets in 5 mg as the vet had written for. When I received the tablets, they weren't scored, which allowed easier cutting in half. There was a hard enteric coating which prevented it being cut in two. The pharmacist worked with me to obtain the scored pill.

Rated 5 out of 5 stars
By Scott on Nov 16, 2023

Felimazole is a good choice to treat hyperthyroidism in cats

Felimazole was prescribed by my veterinarian for one of my cats when tests showed she had developed hyperthyroidism. The pills are coated, which makes them fairly easy to administer. Use only as directed.

Rated 5 out of 5 stars
By Sandra on Nov 21, 2023

Works well for my cat

My cat requires 5 mg am and 2.5 mg pm, it works so well to have the 2.5 to give in the pm and not to have to split a pill! And the pink coat makes the pill slide down easily!

Rated 5 out of 5 stars
By Melissa on Sep 7, 2023

Easy to administer

This pill is tiny and coated. I put it in my cat's wet food twice a day and he gobbles it right up. He has been on it 3 weeks and is already feeling much better. If your cat likes canned food, this is the easiest way to administer the medication. I initially tried the transdermal meds given in the ear. He didn't mind having it rubbed in his ear at first but after a week started running off whenever he heard the applicator click to get the medication to come out. Giving it in his food is much less hassle.

Rated 5 out of 5 stars
By Robert on Nov 2, 2023

First Order (Prescription)

Chewys customer support and pharmacy were very helpful is our first order for our cats prescription. We will for sure be returning customers.

Rated 5 out of 5 stars
By Michelle on Nov 10, 2023

Kitty medication

Daily needed medication and Chewy makes it easy to have on hand. Price is so much more reasonable than my vet's price.

Rated 5 out of 5 stars
By Geraldine on Nov 21, 2023


Much easier to swallow. It pops right down. Not an ordeal to give meds twice a day. We're both happier.