Fears of phenylbutazone (Bute) contamination in processed foods sold in England have been realized as the country’s food safety inspection board has confirmed presence of the drug in certain “beef” products.

The Food Standards Agency (FSA) announced this week that a canned corned beef product marketed by the company Asda has tested positive for the presence of Bute. The product is currently being recalled.

The “Smart Price Corned Beef” cans were recalled in early March after horsemeat was found to have been substituted for the beef, the FSA reported. However, at the time, Asda had reassured its customers that even though the meat was tainted with horsemeat, it was still fit for human consumption. The new Bute findings, however, have now rendered the food unfit for consumption.

“If you have bought the above product, please do not eat it,” the FSA warned on its website