9.3 Schedule III–V Prescriptions: Refill Limits, the 80% Rule & Controlled Substance Transfers

9.3 Schedule III–V Prescriptions: Refill Limits, the 80% Rule & Controlled Substance Transfers

Blueprint items 2.1 (refill authority) and 3.2 (transferring prescription information) come together for Schedules III–V.

Refill and expiration limits

• No refill instruction means no refills. If the prescriber does not document refill intentions on a CIII–V prescription, no refills are authorized (R156-37-603(4)(a)).
• Specific directions are required. A CS prescription may not be issued or dispensed without specific instructions on how and when to use it (R156-37-603(7)).
• Gabapentin follows the Schedule V one-year rule in Utah (Section 8.1).
• Acute opiates: the 7-day acute limit applies to Schedule III opiates too, such as acetaminophen with codeine (§ 58-37-304(6)(d)).

The 80% rule (R156-37-603(6))

"A refill may not be dispensed until sufficient time has passed since the date of the last dispensing that 80% of the medication in the previous dispensing should have been consumed if taken according to the prescribing practitioner's instruction."

Example: 30 tablets of alprazolam 0.5 mg, one tablet daily, dispensed June 1. Eighty percent of 30 days is 24 days, so the earliest refill is June 25. Utah's 80% rule applies to controlled substances. For eye drops, the separate 70% rule applies (§ 58-17b-608.1(2)).

Refill records and partial refills (federal)

• Each refill is recorded with the date, quantity, and the identity of the dispensing pharmacist (21 CFR 1306.22). Utah allows prescription records to be kept electronically if the original prescription (including telephone prescriptions) is kept in a physical file and the system gives immediate retrieval of CIII–IV refill information (R156-37-602(4)).
• Partial refills of CIII–V are allowed if each is recorded as a refill, the total does not exceed the quantity prescribed, and nothing is dispensed more than six months after issuance (21 CFR 1306.23).

Transferring controlled substance prescriptions

Utah incorporates the federal transfer rule: "Prescription orders for controlled substances including prescription transfers shall be handled in accordance with 21 CFR 1306.25" (R156-17b-612(1)).

Utah's broader transfer rule for legend drugs lets a pharmacist, intern, technician (at the on-duty pharmacist's discretion), or DMP transfer, and says staff may not refuse to transfer information on a patient's behalf (R156-17b-612(5)). For controlled substances, the federal requirement that two licensed pharmacists communicate the transfer controls. See Section 10.3 for legend-drug transfers.

Scenarios

• Sixth refill request. A lorazepam prescription dated January 10 authorized five refills, and all five have been dispensed. On May 15 the patient asks for more. No refills remain, so a new prescription is needed.
• Seven months later. A CIV prescription dated January 10 still shows two refills on August 15. Refills may not be dispensed more than six months after issuance, so they expired July 10.
• Transfer request. A patient asks to move remaining clonazepam refills to an unaffiliated pharmacy. One transfer is allowed, pharmacist to pharmacist. Once transferred, the refills cannot be transferred again to a third pharmacy.

Exam strategy

For any Schedule III–V refill question, check four limits in order:

1. time: 6 months for CIII–IV, 1 year for CV;
2. count: no more than 5 refills for CIII–IV;
3. pace: Utah's 80% rule; and
4. authorization: a blank refill field means zero.

For transfers, ask whether the pharmacies share a real-time database and whether the transfer is pharmacist to pharmacist.