Displaying 3 results of Toltrazuril Stable Isotopes Toltrazuril is an antiprotozoal medication used in veterinary medicine to treat coccidiosis in poultry and other animals. Stable isotopes of Toltrazuril are often used in research and analytical applications such as drug metabolism studies, pharmacokinetic analysis, and drug development. These isotopes have identical chemical properties to the non-labeled compound, but their unique mass allows for precise tracking and measurement in biological systems.