Can someone be brutually honest and offer advice about the side effects of  this drug - my mum was diagnosed with breast cancer in January after hiding a lump for 18months. After scans, it's spread to bones and lung & diagnosis is stage 4. She has been offered this drug along with Denosumab (which is the injection into her belly), however the side effects in the fact sheets are pretty scary. She refused it last visit to the cancer hospital about 6weeks ago as would mean she would have to shield & I vowed to investigate on these forums how it would effect her. My primary concern is that her immune system will weaken and the side effects sound similar to some of covid - temperature, chest infections etc and id be scared that we will be constantly thinking she has that. 
 

Can someone please let me know how they get on with it and we can make a proper decision based on actual people rather than a fact sheet.