7.3 Partial Filling of Schedule II Prescriptions (CARA & Title 63)

7.3 Partial Filling of Schedule II Prescriptions (CARA & Title 63)

Core Legal Framework: Historically, federal and state laws severely restricted the partial filling of Schedule II Controlled Dangerous Substances (CDS), generally allowing partial fills only when the pharmacy lacked sufficient inventory to supply the full order. With the federal enactment of the Comprehensive Addiction and Recovery Act of 2016 (CARA; 21 U.S.C. § 829(f)) and corresponding harmonization within Title 63 O.S. § 2-309 and 21 CFR § 1306.13, pharmacists are authorized to partially fill Schedule II prescriptions under three distinct legal scenarios, each governed by its own strict operational rules and timeframes.

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1. The Three Distinct Schedule II Partial Fill Scenarios

+---------------------------------------------------------------------------------------------------+
|                       SCHEDULE II PARTIAL FILLING REGULATORY MATRIX                               |
+-----------------------+-----------------------------+---------------------------------------------+
| Scenario              | Maximum Completion Window   | Mandatory Recordkeeping & Reporting Rules   |
+-----------------------+-----------------------------+---------------------------------------------+
| **1. Pharmacy OOS**   | **72 Hours** from the initial| Must note qty supplied on Rx. If remainder  |
| (Out-of-Stock)        | partial fill dispensing date| not filled in 72h, balance is VOID; MD notify|
+-----------------------+-----------------------------+---------------------------------------------+
| **2. CARA Request**   | **30 Calendar Days** from   | Authorized by patient or prescriber. Total  |
| (Patient/Prescriber)  | the **DATE WRITTEN/ISSUED** | dispensed across fills cannot exceed total. |
+-----------------------+-----------------------------+---------------------------------------------+
| **3. LTCF / Terminally| **60 Calendar Days** from   | Must document 'LTCF' or 'terminally ill' on |
| Ill Patients**        | the **DATE WRITTEN/ISSUED** | Rx. Record date, qty, balance, RPh initials.|
+-----------------------+-----------------------------+---------------------------------------------+

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2. Scenario 1: Pharmacy Stock Shortage (The 72-Hour Rule)

Under 21 CFR § 1306.13(a) and Oklahoma law, when a pharmacy receives a valid Schedule II prescription but is unable to supply the full quantity prescribed due to inventory limitations (out-of-stock or insufficient stock):

Operational Requirements:

1. Immediate Notation: The pharmacist must record the quantity dispensed on the face of the written prescription or in the certified electronic database record.
2. 72-Hour Hard Deadline: The pharmacy has exactly 72 hours from the first partial dispensing to supply the remaining balance of the prescription.
3. Prescriber Notification & Forfeiture: If the remaining portion is not or cannot be dispensed within the 72-hour timeframe (e.g., wholesaler shipment is delayed beyond 72 hours), the pharmacist must:
   • Notify the prescribing practitioner that the remainder was not filled.
   • Forfeit the remaining balance: No further quantity can be dispensed on that prescription. The remaining medication balance is completely void.
   • New Prescription Required: To receive any additional medication, the patient must obtain a brand new prescription from the prescriber.

Key Calculation Note: The 72-hour clock runs from the exact timestamp of the initial partial fill dispensing, NOT from when the prescription was originally written or dropped off.

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3. Scenario 2: Patient- or Prescriber-Requested Partial Fills (CARA 2016)

Under the Comprehensive Addiction and Recovery Act (21 U.S.C. § 829(f)) and Oklahoma pharmacy practice rules (codified under 21 CFR § 1306.13(b)):

Clinical and Public Health Purpose:

CARA was enacted to prevent unnecessary opioid accumulation in household medicine cabinets. A patient recovering from surgery who is prescribed 30 oxycodone tablets may request only 10 tablets initially to determine if their acute pain resolves, reserving the option to obtain the remainder only if needed.

Statutory Rules for CARA Partial Fills:

1. Authorized Triggers: The partial fill must be requested by either the patient (or patient's caregiver) or the prescribing practitioner.
2. The 30-Day Completion Window: All partial fills must be completed within thirty (30) calendar days from the DATE THE PRESCRIPTION WAS WRITTEN (issued).
3. Critical MPJE Distinction (Issue Date vs. Dispense Date): The 30-day window is calculated from the date of issuance (written date), NOT from the date the patient presented to the pharmacy or received the first partial fill.
4. Dispensing Limits: The cumulative quantity dispensed across all partial fills cannot exceed the total quantity originally authorized on the prescription.
5. Emergency Oral C-II Exception: If a Schedule II prescription is authorized as an emergency oral order, any partial fill must have its remainder dispensed within 72 hours from the oral authorization, rather than 30 days.

+-------------------------------------------------------------------------+
|             CARA 2016 30-DAY WINDOW TIMELINE CALCULATION                |
+-------------------------------------------------------------------------+
| Prescriber Issues Electronic C-II Rx:   | October 1, 2026 (#60 tabs)    |
| Patient Requests Initial Partial Fill:  | October 10, 2026 (Takes #20)  |
| Remaining Authorized Quantity:          | #40 tabs                      |
| Absolute Final Date for Partial Fills:  | October 31, 2026 (30 days from|
|                                         | October 1 issue date!)        |
| Post-October 31 Status:                 | Unfilled balance is VOID.     |
+-------------------------------------------------------------------------+

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4. Scenario 3: LTCF Residents & Terminally Ill Patients

Under 21 CFR § 1306.13(c) and Oklahoma administrative regulations, specialized partial fill allowances exist for vulnerable patient populations requiring ongoing symptom management:

Covered Patient Classes:

1. Patients in a Long-Term Care Facility (LTCF): Nursing home residents, intermediate care facility residents, and skilled nursing facility patients.
2. Terminally Ill Patients: Patients with a documented medical prognosis of terminal illness (including home hospice or inpatient palliative settings).

Statutory Rules & 60-Day Lifespan:

• Mandatory Prescription Notation: The pharmacist must record on the prescription whether the patient is "terminally ill" or an "LTCF patient". Dispensing partial fills under this section without this explicit documentation violates federal and state law.
• The 60-Day Window: Schedule II prescriptions for LTCF or terminally ill patients may be partially filled for up to sixty (60) calendar days from the date of issue (written date).
• Incremental Dispensing: Multiple partial fills of small quantities (e.g., 2- to 7-day supplies) are permitted to prevent drug waste when dosing regimens frequently change.

Mandatory Log Recordkeeping for Each LTCF / Terminal Partial Fill:

For every individual partial dispensing event, the pharmacist or pharmacy automated system must record:

1. Date of the partial fill.
2. Quantity dispensed.
3. Remaining quantity authorized to be dispensed.
4. Identification / initials of the dispensing pharmacist.

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5. Comprehensive Summary Matrix of C-II Partial Fill Rules

+-------------------------------------------------------------------------+
|                   SUMMARY: SCHEDULE II PARTIAL FILL LIMITS              |
+-------------------------------------------------------------------------+
| Stock Shortage (Out-of-Stock):  | 72 Hours from Dispensing Event        |
| CARA (Patient/MD Request):      | 30 Calendar Days from ISSUE DATE      |
| LTCF / Terminally Ill Patient:  | 60 Calendar Days from ISSUE DATE      |
| Emergency Oral C-II Order:      | 72 Hours from Oral Authorization      |
| Cumulative Quantity Cap:        | Can NEVER exceed original prescribed  |
+-------------------------------------------------------------------------+