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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Works well for my cat
From UndisclosedComments about Felimazole (methimazole)This is a really good alternative to traditional methimazole - it's available in a 2.5 mg size, which is the dose prescribed by my vet, and is more convenient than having to split a 5 mg. tablet. Also, these pills have a bright pink protective coating, so there is no taste. Very easy to pill my hyper-t cat, plus the pink coating makes it easier to see if he spits it out! -
Felimazole has made it all better !
From UndisclosedComments about Felimazole (methimazole)It's 100% great and working to stabilize her thyroid function. She's 20 years old this month but is still doing well with the help of the medication.-
![Felimazole has made it all better !]()
Here's lookin at you kid !
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Works well for my cat!
From Los AngelesComments about Felimazole (methimazole)Controls my cat's hyperthyroidism very well!-
![Works well for my cat!]()
Daisy
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Great products and great service
From UndisclosedComments about Felimazole (methimazole)After working with my veterinarian it has finally been figured out my cats medicine needs. Since this will be for the rest of her life I am making this a little easier on myself. I just order and vetrx sends right to my house. Another perk they save me money.-
![Great products and great service]()
Kali
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Great prices, awesome customer service
From UndisclosedComments about Felimazole (methimazole)So happy to find that we could order Merlot's thyroid meds from Vet Rx Direct. Great prices, awesome customer service and fast delivery. We'd do anything for our amazing old man of 18 years ... VetRx Direct helps us do just that.-
![Great prices, awesome customer service]()
Merlot looking dapper in the sunshine 😻 #blackcatsofinstagram #blackcat_features #catsofinstagram -
![Great prices, awesome customer service]()
My handsome Merlot 😻 #blackcatsofinstagram #blackcat_features #blackcatfeatures #catsofinstagram
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Yes I would buy again as it is prescribed for my sweet kitty
From Burien, waComments about Felimazole (methimazole)Twice a day...I am in for the long haul....she is only 11 years old.-
![Yes I would buy again as it is prescribed for my sweet kitty]()
Pepper the great!
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Easy pill for strong defiant cats
From UndisclosedComments about Felimazole (methimazole)My cat is so difficult to pill but these are tiny and coated and he barely notices. I don't think they taste bitter, as I have yet to try them myself. I definitely keep buying!-
![Easy pill for strong defiant cats]()
He doesn't hide anymore
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Vet Rx Direct made switching so easy
From UndisclosedComments about Felimazole (methimazole)My furbaby, Snowy, was diagnosed with hyperthyroidism a number of years ago and she has responded well to this medication. Initially, I purchased her meds through her veterinarian hospital because I thought it would be easier as they are so close. However, I went to pick up her meds one day and their price had went way up. Because of their price hike, I went online to find a better price and came across Vet Rx Direct whose price was such that I get almost twice the amount of Snowy's medication for what I was paying my vet. Vet Rx Direct made it so easy to make the switch. I just provided a little information and they took care of the rest. Vet Rx Direct has my business from now on.-
![Vet Rx Direct made switching so easy]()
Snowy loves to "help" when someone is on the computer. -
![Vet Rx Direct made switching so easy]()
Is there anything better than resting in the sun?
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I trust this product and expect my cat to live healthier.
From UndisclosedComments about Felimazole (methimazole)My 10 year old cat Pepper Girl has Hyperthyroidism and this medication is helping her. She was overweight and she lost a few pounds, her coat is smooth and shiny again and she is more active.-
![I trust this product and expect my cat to live healthier.]()
HAPPY 10th BIRTHDAY PEPPER. Looks like I just woke her up. Happy Birthday sleepy head.
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Awesome product
From UndisclosedComments about Felimazole (methimazole)This product has been a life saver for our cat. The savings from vetrxdirect.com is enormous compared to veterinary clinic prices. Ordering from Vetrxdirect is hassle free and shipping is fast! -
Displaying Reviews 51 - 60
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