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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Great, Consistent Service!
From UndisclosedComments about Felimazole (methimazole)Give twice a day to my cat. VetRxDirect is excellent about sending reminders and quick turnaround on delivery. Highly convenient. -
Great treatment for hyperthyroid cats!
From UndisclosedComments about Felimazole (methimazole)I love this medication. My cat has to take 1-1/4 pill 2 times a day, and for a while, I couldn't figure out how to chop these pills in to quarters without them becoming powder, but my vet tipped me off - you can clip the pill into quarters using the cat nail clippers! This has given my cat an extra 3 years of life so far, so I will keep using it for as long as I get to keep him happy and healthy!-
![Great treatment for hyperthyroid cats!]()
My boys lounging together
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I would buy this product always from VetRx!
From UndisclosedComments about Felimazole (methimazole)Elvis has hyperthyroidism which effects so many things like weight loss, dull fur, appetite and overall character. This product with the right dosage brought his appetite in check, his fur back to a glossy black, gained weight back and we got our normal Elvis back! I can't say enough about VetRx Direct in the ease of ordering, very cost effective, the quick delivery and customer service is always there when I have questions.-
![I would buy this product always from VetRx!]()
Just hanging around today.
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Easy Peezy Kitty Pilling
From UndisclosedComments about Felimazole (methimazole)This guy gets one tab twice per day. These pills are small and nicely shaped. It is rare that they do not go down successfully. No fuss, no muss, no trauma. It manages Fermin del Mar's T4 successfully, going in to second year.-
![Easy Peezy Kitty Pilling]()
Is it time for my next Felimazole?
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Tell your friends about this website!
From UndisclosedComments about Felimazole (methimazole)So glad I found this website! The prices are great, and save me money. The prescription was the same exact on as my Vet was prescribing, and I don't have to drive 10 miles to get it. VetRxDirect delivers to my front door... -
Hassle free service
From UndisclosedComments about Felimazole (methimazole)Great price and no problems with Vetrxdirect filling the script. -
Will continue ordering
From UndisclosedComments about Felimazole (methimazole)Prescription Drug. Getting this drug from VetRX is a lot cheaper than getting it from my vet. Fast Shipping. -
Lifeline for my 19-yr old senior lady cat
From Grand Rapids, MIComments about Felimazole (methimazole)The clinic that I work at does not keep methimazole in stock so I found Felimazole through VetRx. I like that the pill is coated because it makes it much easier to pill my cat versus a plain pill that gets stuck in the back of her mouth, which as you can imagine is not fun for either of us. Sophie is still kicking at 19 years after being diagnosed a couple of years ago. I know without this medication she would have passed by now due to the severity of her condition. This (along with mirtazapine) is literally her lifeline. -
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Coated tabs help disguise the taste
From UndisclosedComments about Felimazole (methimazole)We were really struggling to get thyroid medication into our cat. We found these tabs, and they are easier to get into our cat. The coating disguises the taste of the med, which is very helpful. -
I'll Continue Buying Medication From VetRxDirect
From UndisclosedComments about Felimazole (methimazole)This medication was ordered by my vet. The cost from the vet for 100 pills is more than twice the cost from VetRxDirect. I've placed three orders with VetRxDirect and each order was processed and shipped promptly and arrived in a short time. I will continue to purchase this medication from VetRxDirect.
Displaying Reviews 61 - 70
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