title: Further observations on the action of fenbendazole against inhibited fourth stage larvae of Ostertagia ostertagi.
abstract: Two further trials are reported on the effect of fenbendazole on inhibited Ostertagia ostertagi larvae. In the first trial fenbendazole successfully eliminated inhibited burdens of O ostertagi, while in the second trial the effect was variable. As a result of these trials and previous reports it is concluded that a single oral dose of fenbendazole cannot be relied upon to prevent winter (type 2) ostertagiasis.
mesh_terms: D000818:Animals; D001562:Benzimidazoles / Q000627:therapeutic use*; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy*; D005273:Fenbendazole / Q000627:therapeutic use*; D007814:Larva; D010029:Ostertagiasis / Q000188:drug therapy / Q000662:veterinary*; D014252:Trichostrongyloidiasis / Q000662:veterinary*
chemical_list: D001562:Benzimidazoles; D005273:Fenbendazole