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Felimazole (Methimazole) 2.5mg Coated Tablets (100 Tablets)

Prescription Upload Attached. Prescription On File. Prescription sent to email

Active Ingredients: Each tablet contains 2.5mg Methimazole 

Manufacturer: Dechra Animal Health

Prescription medicine: This is a prescription medicine. Please ensure that you have read the "Ordering Prescription Medicine" page before ordering this item. We require you to upload your veterinary prescription and post us the original. You will need to send your prescription to

PetPA Pharmacy

Reply Paid 91355

Tweed Heads NSW 2485


Australian legislation prohibits the advertisement of prescription drugs to consumers; therefore, we are unable to display any images of the packaging or provide you with more information regarding this prescription medicine. All prescription medicines on the Your Pet PA website are purchased through Veterinary Wholesalers the same as those used by your Vet. All our products are APVMA approved and identical to those used by your Veterinary Surgeon. Please call or email us if you have any queries about any of the products on our site.



Commonly asked questions about Felimazole Tablets:

What are Felimazole Tablets?

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 Felimazole 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 Felimazole.

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 Felimazole. Pregnant women, women who may become pregnant, nursing mothers, and people with low thyroid levels should not handle Felimazole.

What is in Felimazole?

The drug in Felimazole is Methimazole. Methimazole is an anti-thyroid agent that reduces the level of thyroid hormones in the body.

Pet Prescription Medications

Your Pet PA is not a pharmacy but facilitates the supply of prescription medications by an Australian registered pharmacist through our website. When purchasing prescription medication through Your PetPA Pharmacy online you know that:

  • All prescription medication supplied is sourced from Australian veterinary wholesalers and Australian registered pharmacists.
  • All prescription medication available is registered with the Australian Government (TGA or APVMA),
  • All medication supplied is processed and dispensed by Australian-registered pharmacists.

All prescription medication listed on the Your PetPA website is available for supply on acceptance of your order by the pharmacist and on receipt of the original prescription by the pharmacist. As Your PetPA cannot sell or supply prescription medication and is your agent in facilitating the supply by the pharmacist, the acceptance of your order and sale is by the pharmacist*.

*Your PetPA provides the price information of medicines as agent for PetPA Pharmacy Pty Ltd (ABN: 33 658 263 462) trading as Pet PA Pharmacy, 133 Wharf Street, Tweed Heads NSW 2485. Pharmacy Registration Number: PC1241648). All medication supplied on acceptance of your order by the pharmacist will be supplied by PetPA Pharmacy.