Pharmaceutical Prescribing, Controlled Substances, and Prescription Monitoring
Prescribing authority
Minnesota optometrists may prescribe legend drugs and controlled substances within the scope authorized by the Optometry Practice Act and Board rules. Federal DEA registration is required for controlled substances, and the practitioner must comply with Minnesota prescription requirements, including patient and prescriber identifiers and any electronic-prescribing rules. Schedule limits and formulary restrictions must be verified before prescribing; not every drug is within optometric scope.
Controlled substances and the PMP
Minnesota’s prescription monitoring program is governed by Minn. Stat. § 152.126. Prescribers must register and query the PMP when required, particularly before initiating controlled substances such as opioids and at required intervals thereafter. The PMP report should be reviewed for overlapping prescriptions, multiple prescribers, and red flags. Findings and the clinical rationale should be documented.
Safe prescribing
Use the lowest effective dose for the shortest appropriate duration, consider non-controlled alternatives, counsel on risks, and avoid prescribing to family or self except in limited permitted circumstances. Prescription records must include drug, strength, quantity, directions, refills, and date. A prescription is a clinical act, not a customer-service transaction.
Worked example
A patient with a corneal abrasion needs pain control. The optometrist prescribes a topical antibiotic and considers a short course of an oral opioid. Before prescribing the opioid, the optometrist checks the PMP, finds a recent opioid from another prescriber, contacts that prescriber, and documents the decision. If the opioid is not clearly indicated, the optometrist uses a non-controlled regimen and refers for pain management.
Traps
Do not prescribe a controlled substance without a current DEA registration and PMP check when required. Do not write “as directed” without adequate instructions. Do not prescribe for a friend or relative without an examination and documented basis. Do not assume a topical drug is exempt from prescription rules.