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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Easy to use
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsFelimazole is so easy for my cat to swallow!! Very happy that you had this medicine in stock-
![Easy to use]()
Girly
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Helpful medicine, shipped fast!
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsVet recommended 1.25 mg twice daily for my elderly cat. These pills shipped extremely quickly so I was able to get Spanky on the mend. They're small, but we still put them in a pill pocket to make life easier for all of us.-
![Helpful medicine, shipped fast!]()
Spanky the cat!
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Big improvement
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsThe vet recommended it and it has made a difference.-
![Big improvement]()
Clancy/Furbie
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Medication for my elderly cat
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsThe process to order was fast, easy and accurate. I appreciate getting Cocoa's medication from my own home to help her live a long life!-
![Medication for my elderly cat]()
COCOA 14 years old
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Felimazole for my cat
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsMaura has a thyroid condition, so it's important she gets her meds. I get her meds within a week of my order. Very happy!-
![Felimazole for my cat]()
Caturday with Maura
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Hopefully will get his thyroid back on track
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsCosted pills are easier to get in my cat-
![Hopefully will get his thyroid back on track]()
Rocket
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An alternative for treating hyperthyroid kitties
From UndisclosedComments about Felimazole (methimazole) 5mg, 100 Coated TabletsFelimazole helps regulate Nora's hyperthyroidism without needing to have the vey costly radioactive iodine treatment. She's been doing great now for years with normalized blood tests for thyroid, kidneys and liver. She's very small and only requires 1/2 of a pill twice daily which we hide in a bolus ball of wet canned pâté cat food.-
![An alternative for treating hyperthyroid kitties]()
Nora with her big green eyes!
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Good price for a long term medication that helps
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsThs med works well to keep my cat's thyroid function normal. -
This medication is helping my baby
From UndisclosedComments about Felimazole (methimazole) 5mg, 100 Coated TabletsFast shipping for our Love Bambina-
![This medication is helping my baby]()
Bambina
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This medication is helping my baby
From UndisclosedComments about Felimazole (methimazole) 2.5mg, 100 Coated TabletsSeems to be helping our cat Her coat is getting nice and shiny and she is gaining weight we are very happy-
![This medication is helping my baby]()
Christmas fun -
![This medication is helping my baby]()
Easter basket -
![This medication is helping my baby]()
Mommy and daughter
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Displaying Reviews 11 - 20
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