Displaying 3 results of Ribociclib Stable Isotopes Ribociclib Stable Isotopes are non-radioactive versions of Ribociclib, a drug used in combination with other medications to treat advanced breast cancer in postmenopausal women. These stable isotopes have the same chemical and physical properties as the original drug, but do not emit harmful radiation. They are important tools for drug development research and can improve the accuracy and safety of clinical trials.