Aspirin should not routinely be used to prevent heart attacks in people with diabetes, Scottish research suggests.

The British Medical Journal reported that in 1,300 adults with no symptoms of heart disease the drug, which can cause stomach bleeds, had no benefit.

The findings contradict many guidelines which advocate people with diabetes use aspirin to counter the underlying high risk of heart attack and stroke.

But there are key high-risk groups who still need the drug, experts said.

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