Aim: To study the theoretical and practical problems in implementing legal guarantees for the protection of the rights of drug addicts regarding confidentia medical information, to determine the legal grounds for the disclosure of such information, and to identify the classification of legal guarantees for protecting rights in this area. Materials and Methods: This study employs an interdisciplinary approach, using comparative law, as well as dialectical and systemic methods. The materials of the study serve as a basis for systematizing legislation on the implementation of legal guarantees for protecting the rights of drug addicts regarding confidentia medical information. The main legislative sources include the Constitution of Ukraine (Verkhovna Rada of Ukraine, 1996), Fundamentals of Ukrainian Legislation on Healthcare (Verkhovna Rada of Ukraine, 1992), and the Law on Measures to Combat Illicit Trafficking in and Abuse of Narcotic Drugs, Psychotropic Substances, and Precursors (Verkhovna Rada of Ukraine, 1995), among others. Conclusions: The problems of protecting the confidentiality of medical information of drug addicts stem from the lack of legal awareness among medical professionals, outdated medical data protection systems, insufficient state control mechanisms, and ineffective legal liability frameworks, particularly given the development of digital technologies in the healthcare sector.