Parasites do not have to bite your dog for the treatment to work because the medicine works on contact. Its active ingredients, fipronil and S-methoprene, work together to kill parasites and break ...
6.5 months after 3rd dose First episode of parasitemia >0 parasites/μL (Cohort 2 ... Division of Infectious Diseases, Faculty of Medicine, The University of British Columbia Samuel E Gilchrist ...