LONDON (AP) -- British supermarket chain Asda says it is recalling all corned beef from its budget range after traces of a veterinary drug were found in some batches.
The Food Standards Agency says "very low levels" of a painkiller called phenylbutazone, known as "bute," were detected in the products.
The agency said Tuesday it was the first time the drug has been found in a meat product in the U.K. since the horse meat scandal began. Dozens of processed meat products contaminated with horse have been pulled from store shelves across Europe in the past few months.
Earlier tests had shown that Asda's corned beef contained more than 1 percent horse DNA.
Authorities said although animals treated with bute shouldn't enter the food chain, the risk to human health is very low.