liver or kidney problems, are pregnant, breastfeeding, or plan to become pregnant. common side effects include low red blood cell and low platelet counts, infections, tiredness, nausea, sore mouth, abnormalities in liver blood tests, diarrhea, hair thinning or loss, vomiting, rash, and loss of appetite. corey calls it her new normal because a lot has changed, but a lot hasn't. ask your doctor about ibrance. the #1 prescribed fda-approved oral combination treatment for hr+/her2- mbc.