Clinical perspective, offered as context rather than as advice.

Beyond-use dating (BUD) for compounded supply compounded products:

Lyophilized (unreconstituted): typically 12 months from compounding date
Reconstituted with BAC water: typically 28-30 days refrigerated
Reconstituted with sterile water: typically 48 hours (no preservative!)

Always use BAC water for multi-dose vials. Sterile water has no preservative and supports bacterial growth after first puncture. This is a common and potentially dangerous mistake.

NurseLeah_Nash said:

Beyond-use dating (BUD) for compounded supply compounded products: Lyophilized (unreconstituted): typically 12 months from compounding date…

Regarding compounded supply compounding legality: compounding pharmacies can legally produce semaglutide and tirzepatide while these drugs remain on the FDA shortage list. If/when the shortage resolves, the legal landscape may change.

Stay informed. The FDA shortage list is updated regularly. Current status as of my last check: semaglutide still in shortage, tirzepatide removed from shortage list. This directly impacts compounding availability.

NurseLeah_Nash said:

Beyond-use dating (BUD) for compounded supply compounded products: Lyophilized (unreconstituted): typically 12 months from compounding date…

Compounded semaglutide formulations for compounded supply: some pharmacies add ingredients like B12, L-carnitine, or BPC-157 to their semaglutide preparations. Are these beneficial or marketing gimmicks?

My take: B12 addition has some logic (GLP-1s can deplete B12). L-carnitine evidence is weak. BPC-157 for GI protection is theoretically interesting but unproven. I prefer straight semaglutide with no additives — fewer variables, cleaner data on what's working.

NurseLeah_Nash said:

Beyond-use dating (BUD) for compounded supply compounded products: Lyophilized (unreconstituted): typically 12 months from compounding date…

Thank you for spelling out the reasoning rather than just the conclusion. Adding it to my notes with a link back to this thread.

Moderator note: good thread. Keeping it here rather than moving it, because the question is general enough to be useful. Thread quality here is what the rules are for. Keep it up.