Felimazole is a veterinary prescription medication for the long-term treatment of feline hyperthyroidism and for stabilization prior to surgical thyroidectomy. Small, sugar-coated tablets are easy to swallow and available in 1.25 mg, 2.5 mg, and 5 mg strengths—no tablet splitting required. As the first and only approved veterinary medical treatment for feline hyperthyroidism, Felimazole offers a cost-effective option for ongoing management. Each bottle contains 100 tablets for convenient dosing. Oral tablets for cats.