MI HB4284

Establishes a mandatory prescription drug monitoring system to track schedule 2-5 controlled substances dispensed by veterinarians, pharmacists, and prescribers in Michigan or to Michigan addresses.

Requires veterinarians, pharmacists, and dispensing prescribers to report dispensing information electronically to the department at no cost to them, with exemptions for direct patient administration and health facility dispensing of up to 48-hour supplies.

Authorizes the department to share prescription monitoring information with licensing boards, law enforcement, Medicaid programs, healthcare payment providers, and other jurisdictions' monitoring systems through mutual agreements.

Requires prescribers to check the monitoring system before first prescribing controlled substances to a patient, at least annually, every 12 weeks for long-term treatment, and whenever a patient exhibits concerning behaviors.

Defines "behaviors of concern" as 15 specific indicators including selling prescriptions, forging prescriptions, substance abuse history, receiving from multiple prescribers, and recurring emergency department visits for controlled substances.