Successful treatment of a case of feline idiopathic hypercalcaemia with cinacalcet

A 5‐year‐old, male, neutered, domestic shorthair cat was diagnosed with idiopathic hypercalcaemia. It had been previously treated for idiopathic sterile pyogranulomatous disease; however, at the time of diagnosis of the hypercalcaemia, it was receiving no treatment and there was no evidence of recurrence of disease. Treatment of the hypercalcaemia with alendronate, chia seeds and dietary modification was unsuccessful. Treatment with prednisolone was considered inappropriate due to the patient's pre‐diabetic state. Treatment was initiated with cinacalcet, which resulted in resolution of the hypercalcaemia. This report is the first to describe the successful use of cinacalcet to resolve hypercalcaemia in a cat.