Abstract  Twelve dogs with generalized demodicosis were treated with oral administration of ivermectin, 0.4 mg kg of body weight given once every 24 h. Results of skin scrapings were used to determine whether administration of ivermectin should be continued or stopped. Dogs that were free of clinical signs of demodicosis 12 months after administration of ivermectin was discontinued were considered cured. Five dogs were cured. The medían duration of treatment was 15 weeks (range 5-21 weeks). Seven dogs were failures, with five relapsing 3-11. 5 months after treatment was stopped, and two having persistent demodicosis in spite of treatment. Mild ivermectin toxicosis developed in one dog after 5 weeks of treatment; side-effects resolved shortly after the treatment was stopped. Resumen  Se trataron doce perros con demodicosis generalizada con ivermectina oral, 0.4 mg/Kg de peso corporal una vez cada 24 h. Se realizaron raspados cutáneos para déterminar si debia retirarse o continuar con la administración de ivermectina. Se consideraron curados aquellos perros sin sintomatologia de demodicosis 12 meses después de retirar la terapia con ivermectina. La duración medía del tratamiento con ivermectina fue de 15 semanas (rango de 5-21). Se fracasó en siete perros, con cinco recidivas a los 3-11, 5 meses después de parar la terapia y dos con demodicosis persistente a pesar del tratamiento. Un perro desarrolló una toxicosis leve a la ivermectina a las 5 semanas del tratamiento; los efectos secundarios desaparecieron al poco de retirar el tratamiento. [Medleau, L., Ristic, Z., McElveen, D.R. Daily ivermectin for treatment of generalized demodicosis in dogs (Administración díaria de ivermectina para el tratamiento de le demodicosis generalizada en el perro). Veterinary Dermatology 1996; 7: 209-212.] Résumé  Douze chiens présentant une démodécie généralisée fürent traités par administration orale d'ivermectine à la dose de 0.4 mg/kg de poids une fois par jour. Les résultats des raclages cutanés servirent à déterminar la nécessité de continuer ou d'arrêter l'administration d'ivermectine. Les chiens ne présentant aucun symptôme de démodécie 12 mois après l'arrêt de l'ivermectine fürent considérés guéris. Cinq chiens fürent guéris. La durée moyenne du traitement fut de 15 semaines (intervalles de 5 à 21 semaines. Sept cas fürent des échecs, avec 5 chiens récidivant 3 à 11, 5 mois après l'arrêt du traitement, et 2 présentant une démodécie persistante malgré le traitement. Un chien a développé une intoxication modéree après 5 semaines de traitement; les effets secondaires disparaissant rapidement après l'arrêt du traitement. [Medleau, L., Ristic, Z., McElveen, D.R. Daily ivermectin for treatment of generalized demodicosis in dogs (Administration quotidienne d'ivermectine dans le traitement de la démodécie généralisée chez le chien). Veterinary Dermatology 1996; 7: 209-212.] Zusammenfassung  Zwölf Hunde mit generalisierter Demodikose wurden mit einer oralen Verabreichung von Ivermectin in der Dosierung von 0, 4 mg/kg Körpergewicht einmal alle 24 Stunden behandelt. Die Ergebnisse der Hautgeschabsel dienten zur Bestimmung, ob die Verabreichung weiterhin erfolgen sollte oder abzubrechen sei. Hunde, die 12 Monate nach Ende der Ivermectin-Verabreichung frei von klinischen Symptomen der Demodikose waren, wurden als geheilt betrachtet. Fünf Hunde waren geheilt. Die mittlere Therapiedauer betrug 15 Wochen (Spannweite 5 bis 21 Wochen). Bei sieben Hunden versagte die Therapie, wobei fünf nach 3 bis 11, 5 Monaten nach Behandlungsende ein Rezidiv bekamen und zwei Tiere trotz der Therapie einer persistierende Demodikose zeigten. Bel einem Hund entwickelte sich 5 Wochen nach der Behandlung eine milde Ivermectin-Intoxikation; die Nebenwirkungen verschwanden kurz nach Abbruch der Therapie. [Medleau, L., Ristic, Z., McElveen, D.R. Daily ivermectin for treatment of generalized demodicosis in dogs (Tägliche Ivermectinverabreichung als Behandlung für Hunde mit generalisierter Demodikose). Veterinary Dermatology 1996; 7: 209-212.].

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