Storage And Handling - NAPLEX

1. What is the maximum beyond-use date for a single-dose container opened outside ISO 5 (USP <797>)?

   Single-dose opened outside ISO 5: use within $1$ hour. USP <797> restricts to 1 hour outside ISO 5 to minimize contamination risks in non-sterile environments.

2. Which auxiliary label is most appropriate for an enteric-coated tablet regarding crushing?

   Do not crush or chew. Enteric-coated tablets must remain intact to ensure release in the intestine, avoiding gastric irritation or premature dissolution.

3. What is the definition of a "tight" container per USP packaging terminology?

   Protects from contamination by liquids/solids/vapors; loss/efflorescence. USP defines tight containers to safeguard contents from external contaminants and internal changes like efflorescence under normal handling.

4. Which handling practice is required to reduce risk when storing hazardous drugs (USP <800>)?

   Store in a designated area with containment strategies and restricted access. USP <800> mandates containment and restricted access to minimize exposure risks to hazardous drugs for personnel safety.

5. What is the standard pharmacy storage temperature range for controlled room temperature?

   Controlled room temperature: $20$–$25\,^{\circ}\text{C}$. USP defines controlled room temperature as 20-25°C to maintain medication stability under typical pharmacy conditions.

6. Which inventory practice best limits dispensing of expired medications in a pharmacy?

   FEFO (first-expire, first-out) stock rotation. FEFO prioritizes expiring stock to ensure medications are used before expiration, reducing waste and safety risks.

7. Which beyond-use date applies to a water-containing topical/dermal compounded preparation (USP <795>)?

   Water-containing topical/dermal: BUD not later than $30$ days. USP <795> sets a 30-day BUD for topical water-containing compounds to balance stability and contamination risks at room temperature.

8. What temperature range defines freezing for medication storage?

   Frozen: $-25$ to $-10\,^{\circ}\text{C}$. Freezing at -25 to -10°C ensures long-term stability for medications requiring ultra-low temperatures to prevent chemical breakdown.

9. Which beyond-use date applies to a water-containing oral compounded preparation (USP <795>)?

   Water-containing oral: BUD not later than $14$ days refrigerated. USP <795> requires refrigeration and a 14-day BUD for water-containing orals to prevent microbial growth.

10. Which action best prevents loss of potency for hygroscopic drugs after dispensing?

    Dispense in tight container with desiccant when appropriate. Tight containers with desiccants absorb moisture, preventing hygroscopic drugs from absorbing water and losing potency.

11. What is the definition of a "hermetic" container per USP packaging terminology?

    Impermeable to air or other gases under ordinary conditions. USP hermetic containers seal against gases to maintain sterility or prevent oxidation in sensitive pharmaceutical products.

12. Which container type is required when a drug must be protected from moisture?

    Tight container (moisture-resistant closure). Tight containers prevent moisture ingress, which could lead to hydrolysis or degradation of moisture-sensitive drugs.

13. Identify the required storage action for a medication labeled "Do not freeze".

    Store above freezing; avoid $\le 0\,^{\circ}\text{C}$ exposure. The label prevents freezing to avoid physical damage like crystallization or emulsion breaking in sensitive formulations.

14. What is the definition of a "light-resistant" container per USP packaging terminology?

    Protects contents from effects of light. USP light-resistant containers block light transmission to avoid photochemical reactions that degrade drug efficacy.

15. What is the maximum beyond-use date for a single-dose container used for multiple doses in ISO 5 (USP <797>)?

    Single-dose opened in ISO 5: use within $6$ hours. USP <797> allows 6-hour use in ISO 5 to maintain sterility in controlled environments for compounded sterile preparations.

16. Which auxiliary label is most appropriate for a sublingual nitroglycerin tablet bottle?

    Keep in original container; protect from light and moisture. Sublingual nitroglycerin requires protection from light and moisture to prevent degradation and maintain potency.

17. What is the maximum beyond-use date for a punctured multi-dose vial (USP <797>)?

    Multi-dose vial after first puncture: $28$ days unless manufacturer states otherwise. USP <797> defaults to 28 days post-puncture for multi-dose vials to prevent microbial contamination unless specified otherwise.

18. Which packaging system is required for most oral solid unit-dose products in hospitals?

    Unit-dose packaging (single-dose, ready-to-administer). Unit-dose packaging ensures accurate dosing, reduces errors, and complies with hospital standards for oral solids.

19. What is the definition of a "well-closed" container per USP packaging terminology?

    Protects from extraneous solids and loss under ordinary conditions. USP specifies well-closed containers to shield against solid contaminants and prevent content loss during routine storage and transport.

20. Which storage practice is required for investigational drugs to maintain accountability?

    Store separately with restricted access and documented chain of custody. Separate storage with access controls and documentation ensures compliance, security, and traceability for clinical trials.

21. Which beyond-use date applies to a non-aqueous compounded preparation (USP <795>)?

    Non-aqueous: BUD not later than $6$ months or earliest ingredient expiry. USP <795> limits BUD for non-aqueous compounds to minimize stability risks based on ingredient expiration.

22. What USP chapter number establishes enforceable standards for pharmaceutical compounding?

    USP <1>–<999>. USP chapters numbered below 1000 set mandatory, enforceable standards for pharmaceutical practices, including compounding, as established by regulatory bodies.

23. What USP chapter number range provides informational (non-enforceable) guidance?

    USP <1000>–<1999>. USP chapters in the 1000-1999 range offer non-mandatory guidance to support best practices without regulatory enforcement.

24. What temperature range defines refrigeration for medication storage?

    Refrigerated: $2$–$8\,^{\circ}\text{C}$. Refrigeration at 2-8°C preserves medication integrity by slowing degradation processes that occur at higher temperatures.

25. Which storage condition is indicated by the label statement "Protect from light"?

    Store in light-resistant container; minimize light exposure. The label requires light protection to prevent photodegradation, which can reduce drug potency or cause instability.

Study these flashcards