World association for the advancement of veterinary parasitology (WAAVP) guideline for the evaluation of the efficacy of anthelmintics in food-producing and companion animals: general guidelines.

The general WAAVP (World Association for the Advancement of Veterinary Parasitology) guideline on anthelmintic efficacy were prepared to assist researchers with the planning, conduct and interpretation of studies to assess the efficacy of anthelmintic drugs in food-producing and companion animals. General principles are outlined herein to assist in the preparation and execution of dosage determination, dosage confirmation and field studies, which are applicable to all animal host species. These general guidelines are complemented by revised species-specific guidelines, which provide more specific, updated and detailed guidance for each animal host species.