Displaying 3 results of Astemizole Stable Isotopes Astemizole Stable Isotopes are isotopes of astemizole that have a stable nucleus and do not undergo radioactive decay. Astemizole is an antihistamine used to treat allergies and certain skin conditions. The stable isotopes of astemizole are used in scientific research, particularly in drug development and metabolism studies. These isotopes are essential for precise quantification and tracking of astemizole in biological systems.