Displaying 12 results of Varenicline Stable Isotopes Varenicline Stable Isotopes are a collection of isotopically labeled compounds used in the development of smoking cessation drugs. These isotopes are used in pharmacological studies to better understand the metabolic pathways of these drugs and their interactions with the body. The use of labeled compounds allows for more accurate and precise studies, leading to a better understanding of the mechanisms behind these drugs and their potential for treating nicotine addiction.