Felimazole (methimazole) Rx
Starting At
$19.77
Felimazole (methimazole) Rx
$19.77
Or save an extra 5% on your first order (up to $20) with Autoship*
$18.79
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Guaranteed lowest authorized price. Learn more.
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Guaranteed lowest authorized price. Learn more.
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Usually ships the same weekday before 3pm CT with veterinary approval.
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Requires veterinary authorization.
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Your pet's veterinarian will provide directions for use.
What are Felimazole Tablets for Cats?
- Felimazole is a prescription medication used to treat overactive thyroid glands in cats. While Felimazole can’t stop the condition, it will help your cat feel better and improve her quality of life.
- The active ingredient in each small, coated Felimazile table is methimazole, which reduces the amount of the thyroid hormone your cat’s thyroid gland produces.
Why do cats use Felimazole?
- Cats may be prescribed Felimazole to treat overactive thyroid.
- Hyperthyroidism, or overactive thyroid, in cats causes weight loss, increased appetite, excessive thirst, hair loss, and more.
- While there is no permanent treatment for cats with hyperthyroidism, your veterinarian can help your cat feel better by regulating the thyroid with prescription Felimazole.
What else should I know about Felimazole?
- Manages symptoms of hyperthyroidism in cats.
- Small, coated tablets for easy dosing.
- Methimazole has a bitter taste and can be hazardous to humans. Coated tablets cover the taste and reduce contact with Methimazole.
- Looking for Methimazole Generic Tablets, Methimazole Transdermal Gel, or Methimazole Liquid Suspensions?
What problems could my or cat have with Felimazole?
- Common side effects include vomiting, decreased appetite, and lethargy.
- Most side effects occur in the first 3 months of giving Methimazole and may be lessened by gradually increasing the dose. Always follow your veterinarian's directions.
How do you use Felimazole?
- Wear gloves when handling Methimazole.
- Pregnant women, women who may become pregnant, nursing mothers, and people with low thyroid levels should not handle Methimazole.
What is in Felimazole?
- The drug in Felimazole is Methimazole.
- Methimazole is an antithyroid agent that reduces the level of thyroid hormones in the body.
Will I get what I see in the picture?
- Felimazole is a brand name. You will receive the exact brand that you request.
Is it important for my cat to finish all of the Felimazole?
- Cats may use Felimazole for different lengths of time. Please consult your veterinarian if you have any questions.
Felimazole Coated Tablet Pictures:
Felimazole 2.5mg Tablet Picture Felimazole 5mg Tablet Picture
Review Summary
201 total reviews
Rated 4.93 out of 5 stars
98% of respondents would recommend this to a friend
Ratings Distribution
189 5 star reviews
11 4 star reviews
0 3 star reviews
0 2 star reviews
1 1 star reviews
Most Liked Positive Review
Medication
My cat, Critter, is doing well on the 2.5mg Felimazole for her hyperthyrodism. I am happy with VetRxdirect and have been impressed with the staff there.
Most Liked Negative Review
Stupid shaped pill
In 2 weeks we have worn through a pill cutter because of the super thick hard coating on the pills. They are also round not flat so portioning them is a nightmare.
If your pet needs a partial dose do not order these, get the generic and save yourself the headaches. These pills are really poorly designed, wish I could exchange them
Reviews
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Perfect!
From UndisclosedComments about Felimazole (methimazole) 5mg, 100 Coated TabletsThis product was prescribed by our vet and we found that Vet RX Direct was much easier to order from and less expensive than our vet. We've been loyal Vet RX Direct customers for years and always recommend them to our friends, family, and coworkers.-
![Perfect!]()
Darby has learned to take her pills twice per day peacefully!
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Felimazole is saving my cat
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsA cat wondered onto our porch on an extremely hot day in Arizona. He was in pretty bad shape, but we took him to the vet. We have nursed him back to health! He does require a few medication and Felimazole is one of them and is very important for his continued health. VetRxDirect made ordering and delivering easy and it's much appreciated.-
![Felimazole is saving my cat]()
Stanley, the wonder cat
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No side effects
From UndisclosedComments about Felimazole (methimazole) 5mg, 100 Coated TabletsThese pills are very easy to cut in half. 2.5 mgs are almost impossible to come by. My cat tolerates the meds and is responding beautifully.-
![No side effects]()
Computer v Supervisor
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AIDS our Boy with his Hyperthyroidism
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsHave been using this product for approximately 3 years now for Hypothyroidism and seems to work well at controlling his condition. Now that he is older we have to melt his pill in warm water and mix into ball with his Churu sticks and that does the trick.-
![AIDS our Boy with his Hyperthyroidism]()
Calipurr's good InTENTions (wink)
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This medication helps me feel my best!
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsThis regulates my thyroid so that I continue to feel good and energetic! My mom wraps the pill in a pill pocket and tucks it into my wet food. Everyday I look forward to my chewy treat! -
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Best for cat Hyperthyroidism!
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsMuch more affordable and I don't have to cut pills in half anymore! -
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Great Company!
From Reno NevadaComments about Felimazole (methimazole)I tried to get my kitty's medicine through another company for 5 weeks and they kept canceling my order with no explanation. Five days, beginning to end, and VetRxDirect had the meds to me! Thank you! -
Easy treatment for my cat
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsI use a pill pocket to give this to her. Seems to work just fine.-
![Easy treatment for my cat]()
Katniss
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Game changer!!
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsThese pills have been a game changer for our cat! We tried cutting the 5mg pills in half, and it was torture trying to get him to eat them. These sugar-coated 2.5mg pills are SOOOOO much better!! #sweepstakes-
![Game changer!!]()
GingerSnap
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Medicine
From UndisclosedComments about Felimazole (methimazole) 5mg, 100 Coated TabletsBobbie is doing great on this medicine.-
![Medicine]()
Bobbie
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Displaying Reviews 1 - 10
Q & A
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Feline methimazole. What are the ingredients in the tablet. What are the ingredients in the transdermal. Thank you?
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It's best for you to please call us for more information on these methimazole products and options.
Verified Answer
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If my other cat eats this medicine that doesn't need it will it affect her Health??
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Methimazole reduces the amount of thyroid hormone in cats with hyperthyroidism, where the thyroid gland produces too much hormone. For cats without this disease, ingesting this medication could significantly lower thyroid hormone levels and have potentially harmful side effects. Accidental ingestion of this medication by the other cat should be prevented and reported to your veterinarian.
Verified Answer
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Does this medication come in a chewable tablet. That is what my vet has been prescribing? If so, what is the cost? I get the chewable from my vet, but it is very expensive.?
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Unfortunately, we do not have a chewable tablet. We do compound the Methimazole in a suspension or a transdermal gel if either of those would be something that you and your vet would be willing to try. Thank you, VetRxDirect
Verified Answer -
These pills are one of the few pills that cats take well. They are small and coated.
Community Answer
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My vet gave me this prescription for my car about 1mth ago for hyperthyroidism. She would not eat it except if I crush it in her food and then she sometimes does not eat all of it. So I can't be sure if she is getting the proper amount. Is there another version of this medicine that would be easier to administer.?. My vet said no.?
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There is not another form of Felimazole however we do compound the active ingredient Methimazole into transdermal gel that would be applied to the ear or into a suspension. Please consult with your veterinarian to see if one of these options would work for your pet. Thank you, VetRxDirect
Verified Answer
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I have two cats that share the same litter box. If one cat is on felimazole, how would this affect the other cat. I know this drug is toxic to humans.?
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Felimazole is primarily excreted from the urine of cats being treated for hyperthyroidism. The manufacturer reports that if the untreated cat is not eating the litter, any exposure to the untreated cat is likely to be minimal. The trapping of the urine in the litter, the small area of the feet and the fur on the cat make it difficult for the untreated cat to absorb the medication from the litter. This exposure can be further minimized by using clumping litter and keeping the litter box clean by scooping it out daily and changing the litter monthly. People who are cleaning the litter box should wear gloves to minimize exposure. Thank you, VetRxDirect
Verified Answer
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I want to order the last 2 refills of Felimazole (methimazole) 5 mg. tabs for Sierra (cat), ordered by Troy A. Young, DVM. It makes it more convenient for me, and gives me free shipping. Can I do that? OK to call my vet on this if needed.?
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Loleta, Yes, that is fine to do. You will need to log into your online account and place an order, then we can get the refills applied. Thank you, VetRxDirect
Community Answer
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Currently my female cat takes 5mg Methemazole chewable 1/2 2x daily; individuallly blister packed. i like to order tabs should I order 2.5mg or 5mg and cut the pill in half??? Please advise. ?
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Felimazole is a veterinary approved, non-chewable, coated tablet containing methimazole. The manufacturer warns not to crush or break the tablets and to wash hands with soap and water after administration to avoid exposure to drug. They also recommend to wear gloves to handle moistened or broken tablets. Splitting the coated tablets will expose the owner to the thyroid hormone reducing effects of the drug. Since methimazole is potentially a lifetime medication for cats suffering from hyperthyroidism, owners need to be aware that repeated handling of split, broken or moistened Felimazole tablets will increase the risk of decreased thyroid levels. If your cat’s dose is 2.5mg, we would recommend to order the Felimazole 2.5mg tablets.
Community Answer
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If I have a Rx for methimazole 5mg #30 with 6 refills can I get 3 months at a time??
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Yes, you can get up to a years supply at a time. Thank you, VetRxDirect
Community Answer
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Can I get this in a liquid??
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Debbie, We compound methimazole (the active drug in Felimazole) into a suspension. It is available in a variety of strengths and flavors and can be found on the website by searching 'methimazole suspension'. Thank you, VetRxDirect
Community Answer
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would this med make my kitty throw up allot ??
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Laurie, Adverse events attributed to methimazole commonly occur within the first few months of therapy and include vomiting, lack of appetite, and depression/lethargy as seen most often. Gastrointestinal effects occur in about 10% of cats treated with methimazole. If vomiting continues to be a problem, speak with your veterinarian on possible adjustments for your cat to better tolerate methimazole. Thank you, VetRxDirect
Community Answer
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Displaying Questions 11 - 20