Contact your veterinarian if your pet experiences increased drinking, urination, and appetite, or has behavior changes while taking thyroxine. Indications for Use Treatment of congenital hypothyroidism and adult-onset hypothyroidism . General Information FDA approved for use in dogs. It is a common and accepted practice to use thyroxine in cats. Available by prescription.
Hypothyroidism is a common disease of middle age and older dogs.
The thyroxin replaces the thyroid hormone that the body is no longer making. Rare disease in cats except if overtreated for hyperthyroidism . Usually start at twice a day, but may be able to give only once a day. Monitor T4 levels at 2-4 week intervals taking a blood sample to check the level before the daily treatment and 6 hours after the daily treatment. Side Effects None if given at correct dosage.