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ForumsCompounding & FormulationEndotoxin testing in compounded injectables — looking for input Page 3

Endotoxin testing in compounded injectables — looking for input

rick_sfbay Wed, Sep 10, 2025 at 5:43 PM 35 replies 1,765 viewsPage 3 of 7
tony_orlando
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Sep 13, 2025 at 7:47 PM#11
ingrid_STO said:
Resolution therefore closed the doors unevenly, and the asymmetry follows from the bulks lists.

Saving this. It is the first explanation that did not require me to already understand it. Adding it to my notes with a link back to this thread.

Last edited: Sep 13, 2025 at 8:47 PM
1 24NauseaFreeNow
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Dr.PeteFamMed
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Sep 16, 2025 at 9:53 AM#12

Adding the clinical framing, because it changes how the question reads.

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

SourceMonthly CostTypePurity Verified
Brand (Ozempic)$957FDA-approvedN/A (pharma)
503B Compounding$137cGMP compoundedYes (in-house)
503A Compounding$107Patient-specificVaries
Research peptide$47Not 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.

Last edited: Sep 16, 2025 at 10:53 AM
2 0tommy_boulder, hyun_seoul
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Dr.GastroMayo
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Sep 18, 2025 at 11:57 PM#13
SarahChen_PharmD said:
Compounded has been just as effective for me.

I have been on both brand and compounded, and in the context of compounded supply, my experience has been equivalent with both. The key is finding a reliable 503B pharmacy with independent testing.

3 1COA_Karl, MikeFit_NJ, InsuranceTom
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Dr.RaviCardio
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Sep 21, 2025 at 2:00 PM#14
rick_sfbay said:
The shortage clause is the answer to the second question and it is a subtraction rather than an addition.

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

Lyophilized (unreconstituted): typically 6 months from compounding date
Reconstituted with BAC water: typically 28-30 days refrigerated
Reconstituted with sterile water: typically 24 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.

Last edited: Sep 21, 2025 at 3:00 PM
4 2hans_munich, jason_sac26, chris_chi24 and 1 other
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mike_mod
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Sep 24, 2025 at 4:02 AM#15

Moderator note: reminder that nothing in this thread is medical advice, and that clinical claims need a source. Carry on.

Last edited: Sep 24, 2025 at 6:02 AM
5 3PurityPaulOR, MaxMetOK, MounjBrad and 2 others
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