Methimazole (Generic) Tablets, 10-mg, 1 tablet

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About This Item

Details

  • Manages hyperthyroidism in cats: Inhibits thyroid hormone synthesis and helps to relieve symptoms like weight loss, restlessness, and excessive appetite.
  • Improves comfort and quality of life: More than 90% of cats respond to the drug and euthyroidism is normally reached in several weeks/
  • Safe long-term management: Often prescribed twice daily as a maintenance treatment to help stabilize thyroid function over time. Once euthyroidism is achieved, once daily dosing can be considered
  • Used by Veterinarians: Considered by many clinicians in North America to be the drug of choice for treating feline hyperthyroidism

Ingredients

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Reviews
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4.7
Rated 4.7 out of 5 stars
2634 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

90% Positive

Effectiveness

89% Positive

Ingredients

87% Positive

Long-Term Benefits

90% Positive

1085 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 5 out of 5 stars
By Kathy on Dec 25, 2025

1/3 The price of Felizamole

A little bit larger than Felizamole and doesn't have the same type of coating but I am able to administer them the same way. I put it in a piece of a feline pill

A little bit larger than Felizamole and doesn't have the same type of coating but I am able to administer them the same way. I put it in a piece of a feline pill pocket and give it as a treat with his regular treats. I did start by wrapping a piece of his dry kibble in the pill pocket so he'd get used to an occasional "crunch". I also add a small amount of a churu or lickables if he is being finicky.

Rated 5 out of 5 stars
By Allison on Jan 1, 2026

Easy to hide in cats food

The last pills I got, had an enteric coating. My cat is so difficult to get her to take pills and twice a day was becoming difficult. I had to smash the pills and

The last pills I got, had an enteric coating. My cat is so difficult to get her to take pills and twice a day was becoming difficult. I had to smash the pills and mix in her food. This new form, without the coating is much easier to smash up between two spoons and mix in her food.

Rated 5 out of 5 stars
By Teri on Dec 23, 2025

Freshness

The tablets from the vet were hard and stale and I had to really try to crunch them up--a lot of the times--the hard pieces would fly off the cutting board--chewy's

The tablets from the vet were hard and stale and I had to really try to crunch them up--a lot of the times--the hard pieces would fly off the cutting board--chewy's tablets are soft, easy to cut up for the cats and swallow--never buying from the vet again. And, the vet charged $26 for 20 tablets--Chewy is $14 for 120!!!

Rated 3 out of 5 stars
By Cara on Dec 14, 2025

Uncoated tabs make swallowing tricky

My cat has been taking the name brand Felimazole which has a pink coating that helps mask the bitter taste and makes them go down smoother. When my cat’s RX was

My cat has been taking the name brand Felimazole which has a pink coating that helps mask the bitter taste and makes them go down smoother. When my cat’s RX was upped, we opted to try these generic tabs. I can’t vouch for their effectiveness since we haven’t done his next round of bloodwork yet. The price is right so I hope these are effective.

Rated 5 out of 5 stars
By MF on Nov 10, 2025

Easy and reliable ordering

I am so glad I can order prescription medication for my cat at Chewy. No time to waste, the prescription is on time when it is needed and they even check the prescription

I am so glad I can order prescription medication for my cat at Chewy. No time to waste, the prescription is on time when it is needed and they even check the prescription with her vet. I love it! I also noted that the tablets I get here are easier to split in two for the right dosage than the ones I get at the vet. Price is also much better here than at the vet. I am very grateful Chewy makes this process of continuing medication so easy and affordable for me and my kitty. Thank you Chewy and staff!

Rated 3 out of 5 stars
By Susan on Oct 21, 2025

Pill Potency?

I actually was very disappointed. I love Chewy but first time getting medication from you. Price point is amazing, however, I noticed your meds weren’t seemingly

I actually was very disappointed. I love Chewy but first time getting medication from you. Price point is amazing, however, I noticed your meds weren’t seemingly working as well as the vets. I did an experiment & went back to my vet and paid more money to go w their generic brand which looked exactly like yours. My pet seemed to react better to the vets pills than yours. Perhaps the dosage I got from you didn’t have as strong a potency in that batch sent to me? It’s hard to say. I have your medication on hand, but the pills I got from you do not seem to affect him as well as the pills I got from my vet. His fur was looking unkempt and he didn’t seem to be holding as steady on your medication. Just being honest with my review. I will try again with chewy, but for now I’m using the medication from my vet for him.

Rated 5 out of 5 stars
By Kaitlyn on Dec 7, 2025

Great option!

Was purchasing meds from vet and would always have an issue when it came to pick up. Found out could get meds from Chewy and was surprised how easy the process was

Was purchasing meds from vet and would always have an issue when it came to pick up. Found out could get meds from Chewy and was surprised how easy the process was. Def made my life easier and my cat is happy, because I don’t need to worry about breaks in her medication.

Rated 5 out of 5 stars
By Suzanne on Jan 12, 2026

Save on Pricing

These pills are significantly lower priced than if I bought them at the vet office, or at the drug store. Same great quality. Chewy stands behind all their prod

These pills are significantly lower priced than if I bought them at the vet office, or at the drug store. Same great quality. Chewy stands behind all their products.

Rated 5 out of 5 stars
By Debbie on Oct 14, 2025

Wonderful customer service!!!

I was down to a few tablets of my cat's thyroid pills and needed extra supply ASAP. It was a Friday and my vets office was closed for the weekend, but they were

I was down to a few tablets of my cat's thyroid pills and needed extra supply ASAP. It was a Friday and my vets office was closed for the weekend, but they were so gracious and helpful to expedite the process of calling my vet that day and get approval of the meds. They sensed my high anxiety and concern for not having enough pills since my Gracie was newly diagnosed with hyperthyroidism and didn't want her to go through another health crisis. They were so understanding and reassuring and felt they went above and beyond to help me get the meds I needed on time. Thank you Chewy for everything!!!

Rated 5 out of 5 stars
By Lisa on Dec 26, 2025

Methimazole works for my cat

This is medicine my cat Sidney needs. He probably wouldn’t be here without it. He’s been on this medication for probably 3 years now, it saved his life.

This is medicine my cat Sidney needs. He probably wouldn’t be here without it. He’s been on this medication for probably 3 years now, it saved his life.