Can an NP prescribe Phentermine in Pennsylvania?

Yes — Pennsylvania CRNPs may prescribe phentermine, a Schedule IV controlled substance, when they have current prescriptive authority approval, prescribe within their specialty under a physician prescriptive authority collaborative agreement, and the agreement identifies Schedule IV authority.¹²³

For Schedule III or IV controlled substances, Pennsylvania allows CRNP prescriptions for up to a 90-day supply as identified in the collaborative agreement.² A CRNP authorized to prescribe controlled substances must also have DEA registration and comply with controlled-substance prescribing standards.⁴

Prescriptive authority approval also requires at least 45 hours of advanced pharmacology coursework, and Pennsylvania prescribers must query the PA PDMP when required.

CRNPs may not prescribe Schedule I controlled substances and may not delegate prescriptive authority.