Crimes: drugs; illicit use of xylazine; prohibit, and provide penalties. Amends secs. 7103, 7105, 7106, 7401, 7403, 7403a, 7451, 7453 & 7455 of 1978 PA 368 (MCL 333.7103 et seq.).

This bill amends Michigan's public health code to formally include xylazine in the state's controlled substance regulations. It defines specific terms related to the handling of xylazine, such as "illicit use," which covers unauthorized buying, possession, or administration of the drug. The legislation clarifies what constitutes legal activities involving xylazine, including its approved use in veterinary medicine and pharmaceutical manufacturing. By updating these definitions, the bill provides a clearer legal framework for enforcing penalties against the unauthorized distribution and use of xylazine.