In January 2021, the U.S. Food and Drug Administration approved another replacement therapy for canine hypothyroidism.

Thyroid hormones impact many of the body’s functions, and dogs with hypothyroidism don’t produce enough of them. Middle- to older-aged dogs and medium to large breeds are affected most often.

Common signs of hypothyroidism include fur loss and flaky skin, muscle wasting and lethargy, and weight gain—even without eating more. Some dogs are also more prone to ear infections or become cold intolerant. If your pooch exhibits these signs, schedule an appointment with your veterinarian for an exam and blood tests.

The good news is that canine hypothyroidism is easy to treat without costing a leg—and another leg. Affected dogs need daily oral medication indefinitely, but it’s worth it to see them bounce back to normal.