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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Coated version helps my cats
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsThis medicine , especially because it's coated, helps my kitties a lot with their previous problem of vomiting!-
![Coated version helps my cats]()
Rocky's Christmas
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The medication helped normalize her thyroid condition
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsTablet is crushed and included with her food. Her thyroid condition has normalized and she is a happy indoor/outdoor cat.-
![The medication helped normalize her thyroid condition]()
G'morning Sunshine
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Happy Cat
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated Tablets16 year old Sarah has thyroid disease. She was losing weight and becoming lethargic. Shes now put on weight and her lie has improved.-
![Happy Cat]()
Sarah at 16
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This medication saved Elvis's life!
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsThe Felimazole has balanced the hypothyroidism Elvis has. His coat is nice and shiny again along with his appetite getting back to normal.-
![This medication saved Elvis's life!]()
Looking good!
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Extremely helpful
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsGreat product to help my cat and at a fantastic price! -
Felimazole for getting back to normal!
From UndisclosedComments about Felimazole (methimazole)My cat Stoli started losing weight and vomiting quite often. He could keep no food down about half the time. We found out that he had a hyper thyroid disease. At 15 years old we expected the worst. We give him Felimazole twice daily and he is now his regular old self. Stoli takes a pill very well!-
![Felimazole for getting back to normal!]()
Stoli takes a pill well but he doesn't have to like it!
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Coated Tablet makes dosing easier
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsAppreciate the quick service and affordable prices. Snookys thyroid numbers were off the chart. Frlimazone has her in the normal range now. We use tweezers and put the coated tablet in a bite of canned sardine before she gets her regular food in morn and eve. She gobbles it up and we know she's getting the full dose. Thank you vetrxdirect!-
![Coated Tablet makes dosing easier]()
Snooky
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Felimazole for our cat's thyroid
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsOur cat, Ellie takes this medicine as prescribed by our Vet. You can tell she feels much better and sheds less.-
![Felimazole for our cat's thyroid]()
Flame Point Siamese Ellie
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Bobbie
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsI love the product because it helps my cat!-
![Bobbie]()
Bobbie
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Makes sense: Smaller dosages for smaller animals.
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsBeen medicating my cat, twice a day, for what seems like forever, and having to split 5mg tablets. Saw this product and knew that the lives of both Butters (my cat) and myself could be better. No more splitting pills for me and no more sharp edges for him. Hooray!-
![Makes sense: Smaller dosages for smaller animals.]()
Butter's Belly Classic
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Displaying Reviews 21 - 30
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