Toxicologist refutes horsemeat cancer link

A toxicologist from Leeds University has played down claims from Labour's shadow environment secretary Mary Creagh that the drug phenylbutazone causes cancer in humans.

Professor Alistair Hay said there is "no convincing evidence of carcinogenicity".

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FSA: No horsemeat drug fears

The Food Standards Agency has dismissed claims from Labour that a potentially carcinogenic horse drug 'bute' may have entered the human food chain in horsemeat.