A previous clinical trial found that tamoxifen, taken for five years, reduced the risk of developing invasive breast cancer by about 50% in post-menopausal women who were at increased risk of getting the disease.
Another trial found that five years of raloxifene reduces breast cancer risk in such women by about 38%.
Under the new plans, high risk post-menopausal women could be offered the drugs for a period of five years unless they have a history of thromboembolic disease or endometrial cancer.
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Tonight it'll become quite clear with a patchy frost in places. The breeze will keep much of the fog at bay.
He suggested people who are not concerned about the new notes donate their bodies for 'decorative use in future five pound notes'.
Tens of thousands of people lined the streets of Chapecó for a memorial ceremony honouring footballers killed in a plane crash.