In the U.S., there are four anthelmintic drug classes: avermectins (macrocyclic lactones), benzimidazoles, imidazothiazoles ...

Defendazole contains the same active ingredient (fenbendazole) as the approved brand name drug product, Safe-Guard (NADA 128-620), which was first approved for both cattle and goats in 1994. The FDA ...

Defendazole is the first FDA-approved generic equivalent to Safe-Guard, a brand-name anthelmintic first approved for cattle and goats in 1994. 1 According to the FDA, the generic formulation was ...

Cattle farmers are being urged to act before turnout as rising lungworm cases and growing resistance to commonly used wormers increase disease risk on pasture.