A blood pressure drug which was developed 40 years ago, and costing less than 5p a day, could reduce the risk of women dying from breast cancer.
The latest study at Trinity College, Dublin, and Johns Hopkins University in Baltimore in the U.S., found the beta blocker propranolol cut the chances of dying by up to 81 per cent.
The breakthrough could lead to the drug being investigated for both the treatment of breast cancer and prevention of recurrence.
"The results suggest that the use of propranolol is associated with less advanced disease at diagnosis and lower breast cancer-specific mortality," the Daily Mail quoted the researchers as saying.
The study is detailed in the Journal of Clinical Oncology.