Methimazole For Cats – The Benefits And The Cautions

The Cautions Of Methimazole For Cats
The Cautions Of Methimazole For Cats

Methimazole For Cats is available to treat hyperthyroidism. Most vets use it to treat overactive thyroid. In some cases, the drug can be used before any radioactive iodine treatment or thyroid surgery. Before, the medical support used Propylthiouracil for this treatment and now Methimazole replaces it. The reason is Methimazole has lower side effects. To get Methimazole, you need a prescription from your vet. It is available in form of tablet.

Methimazole For Cats – What For?

It can treat hyperthyroidism in cats effectivity with the rapid result and the affordable price for its tablet.
How It Work

Hyperthyroidism happens when the thyroid gland has too much thyroid hormone to produce. Therefore, Methimazole For Cats can inhibit the production.


In order to give a proper dosage, your vet should do several blood tests for your cat. The drug is not suitable for nursing or pregnant cats. When you give Methimazole, you should not give your cat a live vaccine. You should contact your vet immediately when you find your cat develops the sign of infection. Methimazole, also known as Tapazole (Jones) on the market.

Before starting any treatment of Methimazole, make sure that your vet knows if your cat does not have liver disease, weak immune system, or blood cell disorder. It is because a cat with these diseases may show allergic reaction to Methimazole.

In addition, you should also tell your vet if your cat is nursing or pregnant. If your cat has any other medications, let your vet knows that even though you are giving supplements or vitamins.

Methimazole – Not FDA Approved

FDA does not approve Methimazole even though it is a prescription medication that vet can use. However, it is still acceptable to use the medication in cats. Methimazole is available in form of a 5mg scored tablet.

The Dosage

Commonly, the initial dose for a cat is about 5mg per 8 to 12 hours. For pregnant and nursing cats, giving Methimazole may lead to bleeding problems. Besides, the drug can decrease the blood cells in order to deal with infections.

Your vet may give blood tests regularly to your cat to check the blood cells so that the cells are not too low. When your cat takes Methimazole, you should not give any live vaccine. The drug is important for the life of your cat. However, if you stop the medication, of course, the symptom will go back.

The Benefit Of Methimazole For Cats
The Benefit Of Methimazole For Cats

Follow the direction of your vet when you want to give the medication for your cat. We suggest you not to give it in a larger amount, or give it for longer than what your vet has recommended. Check the prescription label and follow the direction. Ask your vet if you do not understand the directions. You can give it with or without food to your cat. Give plenty of water for the cat to drink. Make sure that the drug is far from heat and moisture. Do not make the drug reachable for other pets and kids.

The Side Effects

If your cat shows serious side effects, stop giving the medicine and ask your vet for a help. Below are the common side effects of Methimazole :

  • Difficulty breathing
  • Swelling of the lips, face, tongues
  • Hives
  • These are the serious side effects of Methimazole :
  • Fever
  • Body aches
  • Chills
  • Bleeding or bruising
  • Unusual weakness
  • Blood in the urine or stools
  • Skin rash
  • Severe blistering
  • Peeling
  • Dark urine
  • Loss of appetite
  • Low fever
  • Jaundice

If your cat only experiences the common side effects, you can continue the Methimazole For Cats.