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An evaluation of ethyl-6-ethoxybenzothiazole-2-carbamate (Sch 18099) for anthelmintic activity in domestic animals.

Abstract
Ethyl-6-ethoxybenzothiazole-2-carbamate (Sch 18099) was evaluated for efficacy against natural helminth infections in ponies, pigs, lambs and chickens. Sixteen critical trials were conducted in ponies at dosages of 15 to 150 mg/kg. At 15 mg/kg, efficacy against adult and larval Oxyuris equi was 100% and 91% and against small strongyles it was 98%. Efficacy levels were 95% against Strongylus vulgaris and S. edentatus at the 20 mg/kg dosage. In two trials at 100 mg/kg efficacy against Parascaris equorum was 77%. No efficacy was observed against Gastrophilus spp. or Anoplocephala spp. In swine single oral doses of 10 to 100 mg/kg were not effective. 500 ppm Sch 18099 in the diet for seven days resulted in 100% efficacy against Ascaris suum and Trichuris suis but had no effect on Stongyloides ransomi. Efficacy at 250 ppm against A. suum was 77%. Efficacy at 200 mg/kg in lambs was greater than 90% for Haemonchus contortus, Trichostrongylus axei, Marshallagia marshalli, Bunostomum trignocephalum, Oesophagostomum columbianum, Trichuris ovis, and Chabertia spp. Efficacy was less than 80% for Trichostrongylus vitrinus, Nematodirus filicollis, Ostertagia circumcinta and Cooperia curticei. Except for O. circumcinta and C. curticei, drug efficacy was reduced for these worms in lambs treated at 100 mg/kg. Efficacies of 14.3-89% against Ascaridia galli were obtained with dietary levels of 125-1000 ppm Sch 18099 fed for 7 days. Efficacy of 100% was recorded against Heterakis gallinarum at the 1000 ppm dietary drug level.
AuthorsE Panitz
JournalJournal of helminthology (J Helminthol) Vol. 51 Issue 1 Pg. 23-30 (Mar 1977) ISSN: 0022-149X [Print] England
PMID864223 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Anthelmintics
  • Carbamates
  • Thiazoles
Topics
  • Animals
  • Animals, Domestic
  • Anthelmintics (therapeutic use)
  • Ascariasis (drug therapy, veterinary)
  • Carbamates (therapeutic use)
  • Chickens
  • Horses
  • Nematode Infections (drug therapy, veterinary)
  • Poultry Diseases (drug therapy)
  • Sheep
  • Sheep Diseases (drug therapy)
  • Strongyle Infections, Equine (drug therapy)
  • Swine
  • Swine Diseases (drug therapy)
  • Thiazoles (therapeutic use)
  • Trichuriasis (drug therapy, veterinary)

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