Methimazole is used to treat hyperthyroidism in cats. It has largely replaced propylthiouracil in this treatment process since it has a lower incidence of adverse side effects. Compounding is beneficial in instances where a specific dosage is unavailable or in different forms to make it easier to dose your pet. Methimazole requires a prescription from your veterinarian.
NOTE: Methimazole for 5 mg tablets are also available.
Hyperthyroidism is a condition that occurs when the thyroid gland produces too much thyroid hormone. Methimazole inhibits the production of thyroid hormones.
Blood tests must be done to check for proper dosage. Do not use in pregnant or nursing pets. Do not give your pet a live vaccine while giving methimazole. Contact your veterinarian immediately if your pet develops signs of an infection.
Do not use in pregnant or nursing animals. Methimazole can be given with or without food.
A compounded medication is the creation of a particular medication to fit the unique needs of a patient, including changing the form of the medication (e.g., from a solid pill to a liquid) for a variety reasons (e.g., to make it easier to take, to avoid a non-essential ingredient, to obtain the exact dose needed, adding favorite flavors).
If you are having difficulty giving your pet prescribed medication or need to find a discontinued medication, 1-800-PetMeds offers compounding services on select medications. We can prepare the following: (1) custom strength quantities of a medication (as capsules, liquid, chewable tablets, or transdermal (absorbed through the skin); (2) dosage forms to mask bitter or unpleasant taste (such as capsules or chewable tablets that can also be flavored); (3) dosage forms to make it easier to dose your pet such as a transdermal or liquid (that can also be flavored); and (4) discontinued products such as cisapride or DES.