(f) A prescriber, or other person authorized by the prescriber, shall obtain, before writing a prescription for a controlled substance listed in Schedule II, III, IV or V for a patient, a patient utilization report regarding the patient for the preceding 12 months from the computerized program established by the Office of Controlled Substances when the prescriber has a reasonable belief that the patient may be seeking the controlled substance, in whole or in part, for any reason other than the treatment of an existing medical condition. The prescriber shall review the patient utilization report to assess whether the prescription for the controlled substance is necessary. see full law