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Felimazole is a medication for cats which is used to treat hyperthyroidism. This is a condition which affects mainly older animals and relates to the over-activity of the thyroid gland. The medication controls the amount of hormones released by the thyroid gland.
A cat that has an overactive thyroid may suffer a number of other medical problems as well, such as high blood pressure, a fast heart rate, extreme weight loss and eye problems. If the condition is not treated then the cat may suffer problems with the heart or other organs, blindness and a reduced life expectancy.
Felimazole are small tablets which are sugar coated. They are intended to be administered via the mouth, though this is sometimes hard to do with cats so they can also be added to food.
Most cats will not suffer any side effects from Felimazole and will improve a great deal while taking it. A minority of cats have suffered some side effects such as itchiness around the head and neck which can lead to skin damage from excessive scratching. If more serious side effects are suspected then the cat should be examined by a vet. Those handling the drug should always wash their hands after doing so.
A pet prescription is required to obtain this medication. The drug is available from your vet but usually works out cheaper if obtained from the online supplier VioVet. Your vet must provide a written prescription which can be posted, faxed or emailed to us before the drug can be supplied.
All prices include VAT where applicable.
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Only verified purchasers of this product can leave a review.
Fanta needs this medication.
Customer recommends this product
This product is new to my lovely cat as he took a different medication for Hyperthyroidism before being prescribed this. It seems to be working very well and I hope he can continue to take it. A good quality product
Customer recommends this product
Excellent product but the review does not ask for a rating for delivery (which was a few days later than I was originally told). I will order earlier next time!
Customer recommends this product
Prescribed by the Vet and it works. He is feeling much better.
Customer recommends this product
Product was prescribed for my cats thyroid problem and has been very effective
Customer recommends this product
Below are some recent questions we've received regarding Felimazole for Cats, including answers from our team.
Sally Franklin
My elderly cat has hyperthyroidism also a kidney disease, he started Felimazole last week and it's helped with his fluid intact also his appetite. Does the tablet have anything to do with kidney diseases? Thanks
Felimazole treats Hyperthyroidism. Kidney disease can often be a result of Hyperthyroidism as the kidneys have been overworked due to the disease. It's really important to control the thyroid problem as this can be the cause of the kidney issues in the first place.
However treating the thyroid will have no direct impact on treating the kidney disease, it just may reduce it's progression. Cats with Hyperthryoidism do tend to eat and drink more so treating the problem can reduce water intake back to normal levels. It is confusing as increased drinking is also a sign of kidney disease, so it will be hard to tell which is improving without blood tests or an examination by your vet.
I recommend following your vets advice closely on how to treat the conditions.
Julie Hunter
I currently buy felimazole from my vet, but would like to buy from you when I get his prescription food, but he has both 2.5mg & 1.25mg tablets and you only seem to stock the 2.5mg dose. Will you be getting the smaller dose any time? My vet had confirmed that they can write a prescription (for a fee). Will I have to get a scrip. from my vet every time I order?
We have now added the 1.25mg tablets to the website. Your vet's prescription should state the total number of tablets allowed from that one document. We can supply up to that amount over any period of time, as long as the prescription is first used within the expiry date (usually 6 months from signature). Ideally you should ask your vet to write a prescription with several "repeats" authorised. Most vets are happy to write out a prescription which covers 6 months worth of medication. A few will write it out for 12 months. Some are very reluctant to write out prescriptions at all and will only write out a prescription for a small number, then charge you a lot for the written prescription each time you have to go back. It depends largely on how helpful your own vet is. We can only work from whatever document we receive.
Amanda Williams
Hi my 18 year old cat has just been given these tablets
By the vet for hyperthyroidism. How long should it take
Before we see a difference in her symptoms?
Thank you,
Amanda
This normally takes a few weeks while your cat adjusts to the medication. At 18 years old your cat may well have reduced kidney function and other age-related disorders and reducing her thyroid hormone levels to a more normal level will affect her in lots of ways. It might take a period of time to work out the ideal dose of Felimazole too, so it is important to be patient but also monitor her progress. You will need to visit your vets periodically to make sure all is going well. This usually involves further blood tests ideally.
