Hi @"Claire B" I’ve been on Ribociclib for 3 months now along with letrozole, the letrozole gave me muscle pain in the beginning but seems to have settled, emotionally ive had the odd day where I get teary but that’s about it, just had a body scan yesterday as my Tumor markers went up after going down 😃 so waiting on the results from that fingerscrossed all is well, the side effects I’ve had have been tiredness, very dry peeling skin on fingers and feet and I’ve just noticed my eyebrows and eyelashes seem to be hard to see so think they have thinned out, other than that I seem to be doing ok on it.