Felanorm (Methimazole) Oral Solution for Cats

The most common adverse reactions included change in food consumption (increase or decrease), lethargy, vomiting, diarrhea/loose stool, skin lesions, and abnormal vocalization.

Do not use it in cats with hypersensitivity to methimazole, carbimazole or the excipient, polyethylene glycol. Do not use it in cats with primary liver disease or renal failure. Do not use it in cats with autoimmune disease. Use of Felanorm in cats with renal dysfunction should be carefully evaluated. Reversal of hyperthyroidism may be associated with decreased glomerular filtration rate and a decline in renal function, unmasking the presence of underlying renal disease.

Recommended Dosage
Follow your veterinarians instructions. The starting dose of Felanorm is 2.5 mg administered every 12 hours. Following 3 weeks of treatment, the dose should be titrated to effect based on individual serum total T4 (TT4) levels and clinical response. Dose adjustments should be made in 2.5 mg increments. The maximum total dosage is 20 mg per day divided, not to exceed 10 mg as a single administration.

Storage Instructions
Store at controlled room temperature 25° C (77°F) with excursions between 15°-30°C (59°-86°F) permitted. Keep the container tightly closed.