While the drug isn't allowed to enter the food chain in the U.K., British authorities said the risk to those people who may have eaten meatcontaining it is very low.
The FSA-supervised testing programme is being conducted by local councils following the earlier recalls of supermarket and caterer meat products containing horsemeat.
After an Irish meat-processing company, Silvercrest Foods, was linked with hamburger containing traces of horsemeat, Burger King earlier this month severed its ties.