The efficacy of pyrantel pamoate against ascarids and hookworms in cats |
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| Authors: | R K Ridley K S Terhune D E Granstrom |
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| Institution: | (1) Department of Laboratory Medicine, College of Veterinary Medicine, Kansas State University, 66056 Manhattan, Kansas, USA;(2) Present address: Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, 40506-0099 Lexington, KY, USA |
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| Abstract: | The purposes of this study were to evaluate pyrantel pamoate administered orally at 20 mg/kg body weight for the removal of induced or natural infections of Ancylostoma tubaeformae and Toxocara cati in cats and to compare the efficacy of paste (40 mg base/g) and granule (80 mg base/g) formulations. Thirty cats of mixed breeding and various ages with natural and/or induced infections of A. tubaeformae and T. cati were assigned to one of three treatment groups: (1) non-medicated controls; (2) paste formulation at 20 mg base/kg; or (3) granule formulation at 20 mg base/kg. Infections were induced by feeding the cats on carcasses of infected mice. The study was conducted in replicates of at least one animal per treatment per replicate. The study parameters included clinical observations, physical examinations, faecal egg counts and the numbers, species and stages of worms recovered at necropsy. The paste formulation was 99.3% and 99.7% effective in reducing egg counts of Ancylostoma sp. and Toxocara sp. respectively. The granule formulation was 97.7% and 99.9% effective in reducing faecal egg counts of Ancylostoma sp. and Toxocara sp. respectively. When administered in paste form, pyrantel pamoate was 99.5% effective in removing adult Ancylostoma and 100.0% effective against adult Toxocara. The granule formulation was 97.9% effective against Ancylostoma and 100% effective against Toxocara. No toxic effects of either formulation of the drug were noted. |
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| Keywords: | Ancylostoma anthelmintic cats experimental infection mice paratenic hosts Toxocara |
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