sean_dublin said:

GMP compliance checklist relevant to compounded supply compounding quality: Clean room environment with HEPA filtration Environmental monitoring…

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

Lyophilized (unreconstituted): typically 9 months from compounding date
Reconstituted with BAC water: typically 28-30 days refrigerated
Reconstituted with sterile water: typically 7 days (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.

AmyNC_wife said:

Worth adding the genuine exception, because it is real and narrow: a change made for an identified patient where the prescriber determines it produces…

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

sean_dublin said:

GMP compliance checklist relevant to compounded supply compounding quality: Clean room environment with HEPA filtration Environmental monitoring…

Compounding pharmacy customer here with experience relevant to compounded supply.

I've ordered from 4 different compounding pharmacies over the past 14 months. The quality variation is real — purity ranged from 94% to 101% of label claim based on independent Janoshik testing.

My current compounder (a 503B facility) has been consistently 98-101% purity across 8 orders. I pay $151/month vs $1,361 for brand. The savings are substantial and the product is equivalent in my experience.

Re: compounded supply — this applies whether you're using brand or compounded. The clinical principles are the same.

NeuroNate said:

Two pharmacies quoted me last year, one describing itself as 503A and one as 503B, and I assumed 503B just meant bigger until both stopped within…

Compounding pharmacy response time test for compounded supply: I email customer service at odd hours to test responsiveness. A pharmacy that can't answer questions promptly is a red flag.

My current pharmacy: average response time 2 hours. They answered my questions about storage conditions thoroughly and professionally.

Communication quality is a proxy for operational quality. A pharmacy that communicates well is likely manufacturing well too.

Moderator note: a post naming a supplier has been edited. Discuss suppliers in the review sections, not here. No action needed from anybody.