A field trial with albendazole against Dicrocoelium lanceolatum in sheep.

In a field trial a flock of 115 winterfed sheep were treated twice with a week's interval with albendazole at a dose of 10--12 mg per kg body-weight to test its efficacy against Dicrocoelium lanceolatum. The treatment was completed one week prior to mating in November, and the investigation was based upon monthly faecal egg counts throughout the housing period. The treatments showed about 90% reduction in the egg production of Dicrocoelium, and the gastrointestinal nematodes and Moniezia were eliminated. Side effects were not seen. The results indicate that albendazole could be recommended in cases of dicrocoeoliasis requiring treatment, as well as an efficient broadspectrum anthelmintic.