Methimazole 5mg 100 Tablets

Methimazole 5mg 100 Tablets
List Price: $32.99
Sale Price: $20.99
Code: meth5
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Product Info:

Methimazole is generic Tapazole is available by prescription only. Methimazole is used to treat hyperthyroidism, or an overactive thyroid gland. Methimazole belongs to a class of drugs known as anti-thyroid agents. The thyroid hormone is responsible for regulating the body’s metabolism. When the thyroid gland produces too much of these thyroid hormones, weight loss, abnormal appetite, and heart problems occur. Methimazole is used to treat cats only. It should not be used to treat dogs. Methimazole is available in a 5 mg tablet




  • Rapid results
  • Effectively treats hyperthyroidism in cats
  • Lower incidence of adverse side effects than propylthiouracil

How it works:

Hyperthyroidism is a condition that occurs when the thyroid gland produces too much thyroid hormone. Tapazole inhibits the production of thyroid hormones.


Store at room temperature away from moisture and heat.

How to Use:

  • Do not use in pregnant or nursing pets. Tapazole can be given with or without food.
  • Tapazole is also used before thyroid surgery or radioactive iodine treatment.
  • Tapazole is a prescription medication used by veterinarians to treat overactive (hyper) thyroid in cats.
  • Periodic blood tests will be necessary while the cat is taking this medication.
Weight range (lbs) Dosage
All weights The usual initial dose varies from 2.5-5 mg two or three times a day. Periodic blood testing is required to monitor liver function and for any toxic effects on blood cells.


Keep out of the reach of children and pets. Methimazole should not be used in cats with known allergies to this drug. Do not use in cats that are pregnant or lactating. Do not give live vaccines while on Methimazole treatment. Blood tests must be done to check for correct dosage. Use caution in cats suffering from liver disease, immune system disease, or blood disorders. Use caution when administering Methimazole or when disposing of waste from cats taking Methimazole. Owners, especially pregnant women, should wear gloves when handling tablets or waste from cats taking Methimazole.

Side Effects:

Adverse reactions and serious side effects are rare, but in the case of an adverse reaction or a serious side effect you should stop Methimazole treatment and seek veterinary attention. Some common adverse reactions and serious side effects are facial swelling, breathing difficulties, hives, dark urine, jaundice, blood in urine or stool, easy bruising or bleeding, chills, blistering or peeling, skin rash, or unusual weakness.