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Experimental chemotherapy in horses infected with benzimidazole-resistant small strongyles
  1. DP Britt and
  2. MJ Clarkson
  1. Faculty of Allied Health Sciences and Nursing, Sulaibikhat, Kuwait.


The presence of benzimidazole-resistant strains of equine small strongyles was confirmed in horses at two properties in north west England by a series of faecal egg counts and larval cultures after treatment with mebendazole. A trail formulation of mebendazole in combination with piperazine citrate gave greater reductions in faecal egg counts than mebendazole alone but was much less effective than pyrantel embonate or dichlorvos.

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