Pharmacokinetics and anthelmintic efficacy of topical eprinomectin in goats prevented from grooming

Parasitology Research
S RehbeinT A Wehner

Abstract

Pharmacokinetics and anthelmintic activity of topical eprinomectin in goats prevented from physical contact to others and self-grooming were studied. Sixteen approximately 7 months old male castrated German White Noble goats harbouring induced infections of gastrointestinal nematode parasites were included in the study. They were blocked based on pre-treatment body weight (range 22.4 to 36.4 kg) and then randomly allocated to the untreated control group or the group treated with topical 0.5% w/v eprinomectin (EPRINEX Pour-on, Merial) at 1 mg/kg body weight. Plasma samples were collected prior to and at intervals up to 14 days following treatment and analyzed to determine the concentrations of eprinomectin (B1a component). Parasites were recovered, identified, and counted following necropsy 14 days after treatment. Goats treated with topical eprinomectin had significantly fewer (≥99% reduction, p < 0.01) adult Cooperia curticei, Haemonchus contortus, Nematodirus battus, Oesophagostomum venulosum, Ostertagia circumcincta, and Trichostrongylus colubriformis than the untreated controls. Basic pharmacokinetic parameters for eprinomectin B1a were AUCinfinity, 37.1 ± 15.2 day ng/mL; T½, 5.11 ± 2.83 days; and Cmax, 5.93 ± 1.87 ng/mL; i...Continue Reading

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Citations

Jan 15, 2020·Journal of Veterinary Research·Sergio Aurelio ZanzaniMaria Teresa Manfredi
Sep 21, 2021·Journal of Veterinary Pharmacology and Therapeutics·Dietmar HamelSteffen Rehbein

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Anthelmintics

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.