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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Lifesaver
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsMy 13 year old Russian blue had hyperthyroidism really bad 2 years ago. This really helps her stay her cutest peppy self without any surgeries! -
Does the job -- easy for me to crush and mix into food
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsVet directed-
![Does the job -- easy for me to crush and mix into food]()
"I'm sleepin here!"
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This medication is a daily must for Rocky.
From UndisclosedComments about Felimazole (methimazole) 5mg, 100 Coated TabletsCats can be challenging to give a pill, however all I need to do is shake the pill bottle and Rocky comes running because he knows he will get a tiny bit of milk as a reward!-
![This medication is a daily must for Rocky.]()
I love Christmas!😻
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2 cats are doing great on this med
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsSoot has stopped pulling her fur out since she has been on the medication. We can see the improvement in her health in her fur.-
![2 cats are doing great on this med]()
Soot
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Helped prolong Baby's life!
From UndisclosedComments about Felimazole (methimazole) 5mg, 100 Coated TabletsBaby has been taking Felimazole for about 5 years now. At 25 years old, it has definitely prolonged his life. He even reminds me to give it to him if I forget. Highly recommend this medication if your cat has hyperthyroidism.-
![Helped prolong Baby's life!]()
Baby
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Precious is feeling much better!!!!!
From UndisclosedComments about Felimazole (methimazole)It was prescribed by her veterinary Dr. And she is doing better she has gained a little weight and seems to be feeling better. My Precious is a older cat of 14 years and has hyper thyroidism, but she is my sweet companion and follows me like like a dog and is very vocal also-
![Precious is feeling much better!!!!!]()
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![Precious is feeling much better!!!!!]()
My Beautiful Lady
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This med has been good for my cat
From UndisclosedComments about Felimazole (methimazole)I pill my cat twice a day with the 2.5 mg coated tabs...definitely making it easy to slip down. Once my vet got Sweetpea's dosage evened out, Felimazole has done what it was meant to do for her hyperthyroidism and that was to keep her thyroid levels fairly low.-
![This med has been good for my cat]()
Sweetpea
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Great product and great service!
From UndisclosedComments about Felimazole (methimazole)My Vet put my Crazy Cat on this to regulate his thyroid. Now his levels are normal and she turned a sickly 15 yo cat into a teenager again! Vetrxdirect.com is so easy to use and always on time. Thanks! -
I am and have purchased his medicine from you.
From UndisclosedComments about Felimazole (methimazole)We were happy that you provided the coated medication for my senior cat, Dusty; because the vet's office weren't able to provide the easier to swallow form for him.-
![I am and have purchased his medicine from you.]()
Dusty Baker Brooks
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Yes, I like ordering this product from VetRX Direct
From UndisclosedComments about Felimazole (methimazole)I give Ms. Phoebe 2 pills am and pm, much better than liquid or cream.-
![Yes, I like ordering this product from VetRX Direct]()
My Watch Cat Ms. Phoebe.
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Displaying Reviews 41 - 50
Q & A
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are you going to still carry the 2.5 mg,coated tabs in felimazole??
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Do you ship to addresses in Canada?
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Due to pharmacy law, we are unable to ship outside of the United States.
Verified Answer
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Can I dissolve neo mercazole in warm water to give to my cat in her food??
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The manufacturer of Felimazole states the following: Wash hands with soap and water after administration to avoid exposure to drug. Do not break or crush tablets. Wear protective gloves to prevent direct contact with litter, feces, urine, or vomit of treated cats, and broken or moistened tablets. Wash hands after contact with the litter of treated cats. Speak with your veterinarian regarding treatment options if you are having trouble administering intact Felimazole tablets to your cat.
Verified Answer
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Is this a time release medication -- I've been crushing it and adding to Spookie's food and she's doing better but need to know if it's time release.?
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According to the manufacturer's package insert, Methimazole coated tablets are not extended-release tablets.
Verified Answer
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We accidentally gave our cat 2 doses tonight. What should we do? Do we need to take her in to the emergency vet or will she be okay? We give her .25 dose usually.?
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If your veterinarian or an emergency veterinarian in your area is not available, you may be able to reach the ASPCA Animal Poison Control Center at 888-426-4435. Please note that a consultation fee may apply.
Community Answer
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Does the coating on Felimazole cover up the very bitter taste and probably offensive smell? What function does a coating accomplish??
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Felimazole has a sugar coated formulation to improve palliability of methimazole. It does help cover up the bitter taste if swallowed immediately, and the tablets do not possess an offensive smell. The manufacturer states that the tablet should not be crushed or broken. Pregnant women, women who may become pregnant, and nursing mothers should wear gloves when handling tablets, litter or bodily fluids of cats treated with Felimazole.
Verified Answer
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I have heard that this medication could be harmful to humans. Can you please elaborate on this? What precautions should be taken by humans when giving this medication to their cats??
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The manufacturer or Felimazole states that pregnant/breastfeeding women should not come into contact with the medication. The manufacturer also states to wash hands with soap and water after administration to avoid exposure to drug. Do not break or crush tablets. Wear protective gloves to prevent direct contact with litter, feces, urine, or vomit of treated cats, and broken or moistened tablets. Wash hands after contact with the litter of treated cats. Methimazole, the active ingredient in Felimazole, is used in humans to reduce thyroid levels. Unnecessary, prolonged exposure to methimazole can cause adverse events in humans.
Verified Answer
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My cat needs to take 1.25 mg of methimazole twice a day. Can you formulate a 1.25mg tablet? Thank you?
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VetRxDirect does not offer a compounded methimazole 1.25mg tablet. A compounded methimazole suspension is available which could be measured to a 1.25mg dose.Please consult with your veterinarian regarding dosing options for your cat.
Verified Answer
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My cat takes 2.5 twice a day. While I am away for two weeks, can it be given both once a day??
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I would not. My cat watchers have always been able to give morning and evening pills.
Community Answer
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What are the side effects of this medication for the cat??
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Some common adverse effects include vomiting, anorexia, and depression/lethargy. Most adverse effects seen in cats using methimazole occur within the first 3 months of therapy and are short lasting, and usually resolve on their own. Please contact your veterinarian with additional questions or concerns regarding these adverse effects.
Verified Answer
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Displaying Questions 1 - 10