Displaying 4 results of Naloxegol Stable Isotopes Naloxegol stable isotopes are a set of isotopes of naloxegol, a medication used to treat constipation caused by opioid use. These isotopes are chemically identical to the non-labeled version of naloxegol but have a different number of neutrons in their atomic nuclei, making them useful for research and drug development. They are stable and do not decay, making them safe to use in laboratory experiments and clinical trials.