PetSymAIPetSymAIPetSymAI
EndocrineCatPrescription

Methimazole (feline hyperthyroidism)

Uses

First-line drug controlling feline hyperthyroidism (T4).

Common side effects

Vomiting, poor appetite, facial itching; rare liver or blood-cell effects.

⚠️ Cautions

Monitor bloodwork monthly for the first 3 months; transdermal ear gel reduces GI upset.