Displaying 11 results of Lansoprazole Stable Isotopes Lansoprazole Stable Isotopes are non-radioactive isotopes of lansoprazole, a medication used to treat gastrointestinal disorders such as acid reflux and ulcers. These stable isotopes can be used for research purposes, including drug metabolism studies and pharmacokinetic analysis. They are chemically identical to natural lansoprazole, but can be distinguished using mass spectrometry techniques.