Carbadox is a drug that combats bacterial infection in swine, particularly swine dysentery. In early 2004 it was banned by the Canadian government as a livestock feed additive and for human consumption, since it is carcinogenic and induces birth defects, as was shown in animal experiments. The European Union also forbids the use of Carbadox at any level.[citation needed] It is approved in the United States for use in swine for up to 42 days before slaughter.[citation needed] Australia also forbids the use of Carbadox for Food Producing Animals.