Felimazole is the first and only FDA veterinary-approved methimazole on the market for the treatment of hyperthyroidism in cats.
Felimazole treats feline hyperthyroidism, a commonly diagnosed disease in senior cats. The disease results in excess levels of thyroid hormone being produced in the thyroid gland. Symptoms can include weight loss, increased thirst and urination, vomiting, and excess activity.
Uses
Felimazole Coated Tablets (methimazole) are indicated for the treatment of hyperthyroidism in cats.
Possible Side Effects
Side effects usually occur during the first three months of treatment. They may include loss of appetite, vomiting, and lethargy. These typically occur within the first two weeks of treatment and may eventually stop even with continuation of treatment. Less common side effects are yellowing of the gums, skin, or eyes (jaundice) which may signify liver problems. Itching of the face, scratching, or increased bleeding tendencies may occur.
Drug & Food Interactions
Do not use in cats with hypersensitivity to methimazole, carbimazole or the excipient, polyethylene glycol. Do not use in cats with primary liver disease, renal failure, autoimmune diseases, hematological disorders or coagulopathies.
Precautions
Use of Felimazole Tablets in cats with renal dysfunction should be carefully evaluated. Reversal of hyperthyroidism may be associated with decreased filtration rate and a decline in renal function, revealing underlying renal disease.
| Directions | Methimazole is not FDA approved for use in veterinary medicine; however, it is commonly accepted for veterinarians to use this medication in cats.
The usual dose in cats is 5mg per cat every 8-12 hours.
Blood tests are repeated every 3-4 weeks until the proper maintenance dose is reached, then blood testing is repeated every 3-6 months.
This medication is needed for life. If the medication is discontinued, the symptoms will reappear. |
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