Modifies provisions relating to advanced practice registered nurses

SB 979 expands prescribing authority for advanced practice registered nurses (APRNs) in Missouri under specific conditions. It allows certified APRNs (excluding nurse anesthetists) to prescribe Schedule III-V controlled substances and limited Schedule II medications (like hydrocodone, hospice medications, and behavioral health stimulants) through written agreements with collaborating physicians. The bill restricts APRN prescriptions for Schedule II drugs to a 120-hour supply without refill, prohibits self-prescribing, and requires clear patient disclosures about care coordination with a physician. These changes aim to clarify APRN scope of practice while maintaining physician oversight for controlled substances.