Displaying 1 results of Oxiracetam Stable Isotopes Oxiracetam is a nootropic drug that has been shown to improve cognitive function and memory in humans. Stable isotopes of Oxiracetam are isotopes that do not decay over time, allowing for more accurate tracking and measurement of the substance. These isotopes can be used in research and development of Oxiracetam-based drugs, as well as in studies to better understand its mechanism of action in the brain.