Hello leenkt, I am sorry to read about your mum's illness. I presume many people successfully take capecitabine. My experience was not. I was prescribed it for bowel cancer. After just literally 2 days I felt like I had a tight band around my chest, especially when lying down. I was quickly taken off it and given a different drug. There is some link to cardiac arrest. It interfered with the rhythm of my heart. I was 42 years old then. I don.t want to scare you, your mum will hopefully cope fine like many others do. I am just relaying information on how it affected me. Best regards and i hope your mums situation can improve.