title: Ivermectin plasma concentrations in collies sensitive to ivermectin-induced toxicosis.
abstract: Five Collies sensitive to toxic effects of ivermectin and 7 nonsensitive Collies were given 100 micrograms of ivermectin/kg of body weight, PO. Blood samples were collected from each dog before treatment; at posttreatment hours 1, 2, 3.5, 5, and 8; and at posttreatment days 1, 2, 4, 7, 14, and 21. Each sample was assayed for ivermectin concentration, and statistical analyses were performed on the resulting plasma concentration data to determine differences in absorption and clearance of drugs between the 2 groups. Variables measured were area under the curve (using the trapezoidal rule), peak plasma concentration, and the time to peak concentration. Differences between sensitive and nonsensitive Collies for variables analyzed were not significant (P greater than 0.05).
authors.affiliation: Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana 61801.
authors.forename: W J
authors.initials: WJ
authors.lastname: Tranquilli
authors.forename: A J
authors.initials: AJ
authors.lastname: Paul
authors.forename: R L
authors.initials: RL
authors.lastname: Seward
mesh_terms: D000042:Absorption; D000818:Animals; D004283:Dog Diseases / Q000097:blood*; D004285:Dogs / Q000097:blood*; D005260:Female; D007559:Ivermectin / Q000097:blood* / Q000493:pharmacokinetics / Q000506:poisoning; D008297:Male; D008657:Metabolic Clearance Rate; D013997:Time Factors
chemical_list: D007559:Ivermectin