Thyroid disease is common in pets. Older cats often develop hyperthyroidism (an overactive thyroid), with weight loss despite a big appetite, increased thirst and restlessness. Dogs more often develop hypothyroidism (an underactive thyroid), with weight gain, low energy and skin and coat problems.
Both conditions are diagnosed with blood tests and are usually well managed with medication and regular rechecks to keep thyroid levels in balance.
How Thyroid Disease Is Treated in Cats and Dogs
Treatment depends on whether your pet's thyroid is making too much hormone or too little. For dogs with hypothyroidism, treatment usually means a daily thyroid hormone supplement given for life. Most dogs respond well, with more energy and a healthier coat over the following weeks to months.
For cats with hyperthyroidism, there are several options. Your vet may recommend daily medication to slow hormone production, or a special prescription diet. Surgery is less common today. Your vet will talk through each option with you, along with your cat's kidney health, age and how easy it is to give medication at home.
Caring for Your Pet at Home During Thyroid Treatment
Thyroid conditions are usually very manageable with consistent care. A few habits can make treatment go smoothly:
- Give medication on schedule and don't stop or change the dose without talking to your vet
- Keep recheck appointments, since blood tests show whether the dose is working
- Watch weight, appetite and energy and note any changes
- Ask about pill tips if your pet is hard to medicate, since other forms may be available
- Call us if you see vomiting, a poor appetite, weakness or changes in thirst
Our on-site pharmacy and online pharmacy make refills simple, so your pet doesn't miss doses.
Questions about Hyperthyroid/Hypothyroid Treatment?
Call us or book an appointment online, and our team will help you decide on the next step for your pet.
Hyperthyroid/Hypothyroid Treatment: Frequently Asked Questions
Is thyroid disease in pets curable?
How long until my pet feels better on thyroid treatment?
What happens if hyperthyroidism in cats goes untreated?
Can a pet on thyroid medication live a normal life?
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