This drug is a last resort for many people suffering from Breast Cancer, it provides a quality of life to sufferers who may be left with more aggressive forms of treatment. It can extend not only the quality of life but the length of time remaining to sufferers.
Sally Greenbrook from Breakthrough Breast Cancer said ' It is a brilliant drug but hugely expensive' ( BBC News 08/08/14)
More info here:
http://www.bbc.co.uk/news/health-28688311