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HB 4166

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.).

2025-2026 Regular Session Introduced by Joey Andrews and 56 co-sponsors

HB 4166 prohibits illicit use of veterinary sedative xylazine, imposes criminal penalties for unlawful possession/distribution, and requires reporting of xylazine overdoses to address this emerging public health crisis.

bill electronically reproduced 03/05/2025
#animals:other #crimes:drugs #healthoccupations:veterinarians #health:other
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Bill Summary · HB 4166

Summary of HB 4166: Illicit Use of Xylazine

Overview

HB 4166 is a bill introduced in the state legislature that aims to prohibit the illicit use of the veterinary drug xylazine and establish penalties for its unlawful possession and distribution. The bill amends several sections of the state's public health code related to controlled substances.

Key Provisions

  • Prohibits Illicit Xylazine Use: The bill expressly prohibits the use, possession, manufacture, delivery, or sale of xylazine for non-medical purposes. Xylazine is a sedative normally used in veterinary medicine, but has increasingly been found mixed with opioids like fentanyl in the illicit drug supply.

  • Establishes Criminal Penalties: Individuals found guilty of unlawful xylazine-related activities would face criminal penalties, including imprisonment and fines. Penalties are tiered based on the quantity of xylazine involved and whether the offense resulted in serious injury or death.

  • Allows for Asset Forfeiture: The bill authorizes law enforcement to seize and forfeit any money, property, or other assets connected to xylazine-related crimes.

  • Requires Reporting of Xylazine Overdoses: Healthcare providers would be required to report suspected xylazine overdoses to the state's public health department to help monitor the spread of this dangerous substance.

Affected Parties

  • The bill primarily targets individuals involved in the illicit manufacture, distribution, and use of xylazine, which has become an emerging public health crisis in the state.

  • Veterinarians and other licensed medical professionals who prescribe or administer xylazine for legitimate medical purposes would not be affected by the bill.

  • Law enforcement agencies would be responsible for investigating and enforcing the new xylazine-related offenses created by the legislation.

Timeline and Next Steps

HB 4166 was introduced in the state legislature on March 10, 2025 and is currently under consideration by the House Judiciary Committee. If passed by the legislature and signed into law, the new xylazine prohibitions and penalties would take effect 90 days after the bill's enactment.

Compiled from official sources — confirm details with the bill’s official record.

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