Effectiveness of Toltrazuril for Coccidiosis in Cats

Abstract

The efficacy of toltrazuril (Baycox® for swine) against feline coccideosis was evaluated using 19 cats infected with coccidiosis. These cats had been diagnosed as suffering from coccidiosis while being accommodated at Amitie Institution affiliated with the Animal Clinical Research Foundation. Toltrazuril was administered orally at a dose of 30 mg/kg according to the following three protocols: 1) a single dose, 2) once a day for two consecutive days, 3) once a day for three consecutive days per week for two weeks. The success rates of the treatments were 1) 33.8%, 2) 83.3%, 3) 100%, respectively. The results showed that toltrazuril was highly effective in treating coccidiosis in cats. It is important to administer toltrasuril for two to three days continuously, and also to repeat the same procedure within 10 days before oocysts reappear in the feces.