The link below is a table detailing the FDA approved anthelmintics. Not all of the anthelmintics listed are labeled for sheep. Check the FDA approved species column (4th from left) to make sure it is safe to use with sheep.
The list was compiled by Susan Schoenian. Susan is a Sheep & Goat Specialist at the University of Maryland’s Western Maryland Research & Education Center and an affiliated faculty member of the Department of Animal and Avian Sciences at the University of Maryland College Park. She is a certified Professional Animal Scientist. Susan has been with University of Maryland Extension (UME) since 1988. Previously, she served as Farm Management Specialist for Maryland’s nine Eastern Shore counties and as a county extension agent in Wicomico County. Her first professional job was as Sheep Specialist for the West Virginia Department of Agriculture. Susan earned her B.S. and M.S. degrees in Animal Science from Virginia Tech and Montana State University, respectively. She raises registered and commercial Katahdin sheep on a small farm called The Baalands in Clear Spring, Maryland.