AN OVERVIEW ON ANALYTICAL METHODS FOR ESTIMATION OF VARENICLINE TARTRATE IN PHARMACEUTICAL DOSAGE FORM BY QBD APPROACH

Varenicline tartrate is a selective partial agonist of the α4β2 nicotinic acetylcholine receptor widely used in smoking cessation therapy. By partially stimulating these receptors while simultaneously blocking the effects of nicotine, varenicline reduces cravings and withdrawal symptoms associated with tobacco dependence. Reliable analytical methods are essential for ensuring the quality, safety, and efficacy of varenicline tartrate in pharmaceutical formulations. Various analytical techniques, particularly chromatographic and spectroscopic methods such as HPLC and UV spectrophotometry, have been reported for its estimation in bulk drug and dosage forms. This article presents a concise overview of nicotine addiction, the pharmacological role of varenicline tartrate, its mechanism of action, and the α4β2 receptor system. In addition, a summarized literature review of reported analytical methods for varenicline tartrate is discussed. The review highlights the importance of accurate and validated analytical approaches for routine pharmaceutical quality control and provides a foundation for future analytical method development.