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".
More top news
Swansea striker Bafetimbi Gomis has been stretchered off the pitch after collapsing during his side's clash with Spurs at White Hart Lane.
ITV News has obtained a video statement made by a former Royal Marine who was later killed fighting against Islamic State in Syria.
A recent three million year-old discovery in Eithiopia has pushed the timeline of human history back 400,000 years.