Cats and Thyroid Medication

Hello again from the Compound Lab!

Today, I want to focus on a condition that’s relatively common in cats: hyperthyroidism.

Just like humans, cats can experience an overactive thyroid. The thyroid gland plays a key role in regulating metabolism and overall function in the body—I often describe it as the body’s engine. When it’s running too fast, it can lead to symptoms like weight loss, increased appetite, restlessness, and a rapid heart rate.

Diagnosis of hyperthyroidism must come from a veterinarian. But once it's diagnosed, the good news is that it’s often manageable with medication.

One commonly prescribed treatment is methimazole, which helps reduce the production of thyroid hormones—essentially slowing down that overactive “engine.”

At our compounding lab, we prepare methimazole in a variety of forms to make dosing easier for both pets and their owners. The most popular option is a transdermal gel, which is applied to the inside of the cat’s ear. This can be especially helpful for cats who don’t take oral medications easily. We also offer flavored liquid or capsule forms for pets who tolerate those better.

If your cat has been diagnosed with hyperthyroidism and you’re looking for custom medication solutions, we’d love to work with you and your veterinarian.

As always, we’re here in the lab Monday through Friday, 9 AM to 5 PM, or you can email me anytime at brandon.ladage@belewdrugs.com.

Until next time,

Brandon

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*Compounded medications are prepared by prescription to meet the individual needs of patients and are not evaluated or approved by the FDA. This content is for informational purposes only and is not intended to diagnose, treat, or cure any condition. Always consult your licensed healthcare provider before making decisions about treatment or medications.