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Evidence-based GLP-1 & peptide discussion since 2023
ForumsCompounding & FormulationEndotoxin testing in compounded injectables — looking for input Page 2

Endotoxin testing in compounded injectables — looking for input

rick_sfbay Wed, Sep 10, 2025 at 5:43 PM 35 replies 1,765 viewsPage 2 of 7
VendorMark
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Sep 10, 2025 at 8:40 PM#6
rick_sfbay said:
Resolution therefore closed the doors unevenly, and the asymmetry follows from the bulks lists.

Price comparison for compounded supply across sources I've used:

SourceMonthly CostTypePurity Verified
Brand (Ozempic)$930FDA-approvedN/A (pharma)
503B Compounding$160cGMP compoundedYes (in-house)
503A Compounding$120Patient-specificVaries
Research peptide$45Not for human useOften Janoshik

I use the 503B option — best balance of quality, cost, and legality. The brand price is insane but insurance can help if you qualify.

27 5DebRD_ATL, KristenIndy, MarkLI_maint and 24 others
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gary_naperville
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Sep 10, 2025 at 9:49 PM#7

Following on from Dr.PeteFamMed — and this may be the naive question:

Why a shortage listing created a legal pathway at all, since a shortage is a supply fact rather than a permission?

28 6DoseLogDan, SleepFixSam, PurityPaulOR and 25 others
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Dr.EndoIndy
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Sep 10, 2025 at 10:58 PM#8
VendorMark said:
Price comparison for compounded supply across sources I've used: Source Monthly Cost Type Purity Verified Brand (Ozempic) $930 FDA-approved N/A…

Compounding pharmacy customer here with experience relevant to compounded supply.

I've ordered from 2 different compounding pharmacies over the past 2 years. 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 10 orders. I pay $121/month vs $1,291 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.

29 7marcus_mpls, DeniseRN_TPA, SandraNC_45 and 26 others
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rick_sfbay
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Sep 11, 2025 at 12:07 AM#9

OP back with an update, since a thread like this is useless without one.

The bulks-list asymmetry was the piece I had missed entirely. It explains why one of my two pharmacies is still arguing it can supply and the other simply stopped.

30 8FranDenver, Dr.BariatricHTX, LindaRN_retired and 27 others
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SarahChen_PharmD
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Sep 11, 2025 at 5:40 AM#10
Dr.EndoIndy said:
Compounding pharmacy customer here with experience relevant to compounded supply.

Agreed, and the enforcement dates were staggered by category — 503A first, 503B a few weeks later — because outsourcing facilities have manufactured inventory and clinic contracts to unwind while a 503A makes to order.

50 23robert_kc, dan_philly, MeganSA_TX and 47 others
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