5.6 Packaging of Dispensed Drugs

Packaging as an MPJE Topic

Packaging is more than the sticker — it is the physical container that protects the drug, the legal unit that determines beyond-use dating, and the safety mechanism (child resistance) that prevents pediatric poisoning. The MPJE tests packaging in three layers: (1) federal standards under the FDCA and PPPA, (2) USP General Chapter <659> Packaging and Storage Requirements, and (3) PA's specific rules on repackaging, unit-dose, and beyond-use dating in 49 Pa. Code § 27.18.

Container Types Under USP <659>

USP <659> defines container classes based on how they protect the contents:

The pharmacist-manager (§ 27.11) must select packaging that preserves the drug's labeled storage conditions; repackaging into a container that downgrades protection (e.g., a tight drug moved to a well-closed container) is misbranding.

Repackaging Rules

Under PA and federal rules, a pharmacy may repackage a manufacturer's stock into smaller dispensing units without a separate FDA registration only if (1) the repackage holds a valid state pharmacy permit, (2) the repackaged product is labeled with all § 27.18(d) elements plus the original manufacturer's lot number and expiration, (3) records identify the source lot for recall traceability, and (4) the beyond-use date assigned follows USP <659> (generally 1 year or manufacturer expiration, whichever is shorter, for solids in tight containers). A repackager operating at scale outside traditional pharmacy practice is a 503B outsourcing facility requiring FDA registration under FDCA § 503B.

Unit-Dose and Limited-Quantity Packaging

Unit-dose packaging means one dose per individually labeled unit. It is standard in institutional (hospital and long-term-care) settings because it reduces administration errors, supports barcode medication administration, and limits cross-contamination. PA requires that LTC and institutional pharmacies operating under a pharmacy services agreement use unit-dose where feasible. Limited-quantity packaging (e.g., a 10-day course dispensed in unit-of-use blisters) follows the same labeling requirements as bulk dispensing.

Beyond-Use Date vs Expiration Date

Default nonsterile BUDs per USP <659>: solid orals in tight containers — 1 year or manufacturer expiration, whichever is earlier; water-containing oral liquids — 35 days refrigerated or per stability data; reconstituted powders — per manufacturer label. Pharmacist-assigned BUDs may never exceed the manufacturer's expiration date of the original product. A label that prints the original expiration as the BUD for a reconstituted suspension is incorrect — the suspension's BUD is governed by the reconstitution instructions (e.g., 14 days refrigerated for amoxicillin oral suspension).

Child-Resistant vs Senior-Friendly

PPPA-compliant packaging is child-resistant (difficult for children under 5 to open) and senior-friendly (adults can open it). "Senior-friendly" alone is not a substitute — the packaging must meet both performance standards. PA permits a one-time-per-prescription patient request for non-CR packaging; refills require a renewed request unless the patient has a blanket written request on file (49 Pa. Code § 27.18 echoes the PPPA framework). See § 5.5 for the full list of exemptions.

Single-Dose vs Multi-Dose Vials

For sterile products, USP <797> (current revision effective Nov 2023) distinguishes:

• Single-dose vial (SDV): lacks antimicrobial preservative; intended for one patient, one procedure. Once entered, it must be used within the manufacturer's labeled time (commonly 6 hours if sterile technique is maintained) and discarded thereafter.
• Multi-dose vial (MDV): contains antimicrobial preservative; may be used for multiple patients. The BUD after first puncture per USP <797> is generally 28 days unless the manufacturer specifies otherwise.

PA-licensed pharmacies compounding sterile products must follow USP <797>. Mishandling an SDV as an MDV — entering it more than once and storing it — is a § 27.18 violation and a USP <797> breach.

Common MPJE Traps

• Confusing the expiration date with the BUD — the latter is set by the pharmacist at dispensing.
• Reusing a single-dose vial across patients — even with preservative, the SDV lacks one.
• Repackaging without preserving the source lot — recall traceability breaks, and the product becomes misbranded.
• Assigning a 1-year BUD to a reconstituted suspension — only stable solids default to 1 year.
• Treating "senior-friendly" as an alternative to CR — it must satisfy both.