They also advised patients to choose paracetamol after finding only 7% of adult asthma patients were sensitive to it.

BBC: NEWS | Health | Aspirin warning to asthmatics

Asthma is caused by over-sensitive airways in the lungs.

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Around 10 million people are estimated to have asthma in the UK, meaning around two million could be sensitive to aspirin and be at risk of suffering a potentially life-threatening reaction to aspirin.

BBC: NEWS | Health | Aspirin warning to asthmatics