Displaying 4 results of Methylphenidate Stable Isotopes Methylphenidate Stable Isotopes are a set of isotopes that are commonly used in pharmacological research related to the drug Methylphenidate. These isotopes are stable and do not decay over time, making them ideal for studying the metabolism, distribution, and elimination of Methylphenidate in the body. Researchers use these isotopes to better understand the effects of Methylphenidate on the central nervous system and to develop more effective treatments for conditions such as attention deficit hyperactivity disorder (ADHD).