By Jamie Martin
Cattle producers have gained another option in the fight against New World screwworm after the U.S. Food and Drug Administration issued an Emergency Use Authorization for Bimectin (ivermectin) injection.
The authorization allows the product to be used in cattle shortly after birth, during castration procedures, or when animals develop wounds that could attract screwworm flies. New World screwworm larvae can cause serious damage by feeding live tissue, creating significant animal health concerns.
FDA officials said the authorization is designed to increase available solutions for producers while helping protect U.S. livestock from the parasite.
Bimectin is a generic form of Ivomec, which was previously authorized for New World screwworm prevention. By adding another approved option to the market, regulators aim to improve product availability and support livestock health management programs.
“This authorization reflects the FDA’s commitment to expanding generic drug options against New World screwworm,” said Timothy Schell, Ph.D., director of the FDA's Center for Veterinary Medicine. “By authorizing both generic and pioneer products, the Agency is ensuring producers aren’t dependent on a single manufacturer or product to protect their herds.”
The FDA reported that its review of scientific information showed that the product may be effective when used according to authorized directions. The agency concluded that the potential benefits outweigh the potential risks under current emergency conditions.
The product had already been approved for the treatment and control of various parasites in cattle. However, the emergency authorization applies only to Bimectin injection for New World screwworm prevention.
Producers can obtain the product without a prescription, but they are expected to follow all label directions and safety guidelines. Proper usage is important to protect animal welfare and help maintain consumer confidence in the food supply.
The FDA also reminded producers to observe a 35-day withdrawal period before slaughtering. In addition, the product must not be used in lactating dairy cows or in calves intended for veal production.
Photo Credit: gettyimages-jacqueline-nix
Categories: National