Final answer:
The term for the date after which a compounded product should not be used according to USP <795> is the 'beyond-use date' (BUD), which marks the period a compounded preparation should remain stable and effective when stored correctly, distinct from a 'sell by date'.
Step-by-step explanation:
According to the USP <795>, the date after which a compounded product should not be used is known as the beyond-use date (BUD). The BUD is determined based on the nature of the drug, the type of compounding, and the container in which the compounded preparation is stored. It indicates the time during which the compounded preparation is expected to remain stable and maintain its labeled potency, quality, and purity when stored under prescribed conditions.
The BUD is not the same as a sell by date which is commonly found on commercially manufactured products. Instead, the BUD is assigned by the pharmacist who is compounding the medication, taking into account factors such as the likelihood of contamination, chemical stability, and available literature or guidelines. For instance, aqueous formulations for oral administration are typically given a shorter BUD than non-aqueous formulations.