Canadian Pharmacist Qualifying Exam Practice · Question
A non-aqueous, non-preserved compounded preparation typically has a beyond-use date (USP <795>) of no later than:
USP <795> default BUDs (post-2023): aqueous nonpreserved 14 days refrigerated, aqueous preserved 35 days, non-aqueous 90 days (older 6-month rule). Always check
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Question: A non-aqueous, non-preserved compounded preparation typically has a beyond-use date (USP <795>) of no later than:
Answer options:
- 24 hours
- 14 days ✅ 6 months (or 25% of API expiry, whichever is earlier)
- 2 years
Correct answer: 6 months (or 25% of API expiry, whichever is earlier)
Explanation: USP <795> default BUDs (post-2023): aqueous nonpreserved 14 days refrigerated, aqueous preserved 35 days, non-aqueous 90 days (older 6-month rule). Always check current standard.
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