Chief Medical Officer Professor Dame Sally Davies has previously said that 'bute' poses only a very low risk to humans. She said:
Horse meat containing phenylbutazone presents a very low risk to human health.
'Phenylbutazone, known as bute, is a commonly used medicine in horses. It is also prescribed to some patients who are suffering from a severe form of arthritis.
The levels of bute that have previously been found in horse carcasses mean that a person would have to eat 500 - 600 one hundred per cent horsemeat burgers a day to get close to consuming a human's daily dose.
And it passes through the system fairly quickly, so it is unlikely to build up in our bodies.
More top news
Establishing a credible test that would prove the backstop has outlived its utility will not easy.
The baby weighed 8lb and 9oz with mother and child both ‘doing well’.
The SUV crashed minutes after police received reports of it being driven south on the northbound carriageway of the M40 on Monday.