🍪 The GLP Lounge uses cookies to improve your experience, analyze traffic, and personalize content. By continuing to use this site, you agree to our Cookie Policy.
Evidence-based GLP-1 & peptide discussion since 2023
ForumsCompounding & FormulationEndotoxin testing in compounded injectables — looking for input Page 7

Endotoxin testing in compounded injectables — looking for input

rick_sfbay Wed, Sep 10, 2025 at 5:43 PM 35 replies 1,765 viewsPage 7 of 7
amy_econ_NJ
Member
567
2,567
May 2024
Princeton, NJ
Feb 3, 2026 at 9:55 AM#31
rick_sfbay said:
Compounding pharmacy licensing verification for compounded supply: before ordering, verify your pharmacy's credentials: State Board of Pharmacy…

Same experience, arrived at from the opposite direction. Posting only so the count is not one.

Last edited: Feb 3, 2026 at 12:55 PM
13 11Dr.SportsMedIN, amy_econ_NJ, bbq_ray_KC and 10 others
Reply Quote Save Share Report
BiostatsBrad
Member
456
2,345
Jul 2024
Durham, NC
Feb 14, 2026 at 11:26 PM#32
rick_sfbay said:
Compounding pharmacy licensing verification for compounded supply: before ordering, verify your pharmacy's credentials: State Board of Pharmacy…

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.

14 12Dr.BariatricHTX, LindaRN_retired, tommy_boulder and 11 others
Reply Quote Save Share Report
Dr.NateNeph
VIP Member
2,987
16,234
Dec 2023
Houston, TX
Feb 26, 2026 at 12:51 PM#33
rick_sfbay said:
Compounding pharmacy licensing verification for compounded supply: before ordering, verify your pharmacy's credentials: State Board of Pharmacy…

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 same day. They answered my questions about sterility testing thoroughly and professionally.

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

Last edited: Feb 26, 2026 at 2:51 PM
15 13SteveThurs, B12Beth, RickReta_CO and 12 others
Reply Quote Save Share Report

Sigma-Aldrich — Research-Grade Standards

Certified reference materials, analytical reagents, and research-grade standards for peptide verification. Trusted by laboratories worldwide.

Shop Reference Standards
Dr.PulmRoch
Member
456
2,345
Jun 2024
Rochester, MN
Mar 10, 2026 at 2:09 AM#34

Following on from rick_sfbay — and this may be the naive question:

What would you measure differently if you were starting again?

Last edited: Mar 10, 2026 at 3:09 AM
16 14DebRD_ATL, KristenIndy, MarkLI_maint and 13 others
Reply Quote Save Share Report
PharmHunterJen
Member
567
2,345
Jul 2024
Illinois
Mar 21, 2026 at 3:20 PM#35
Dr.NateNeph said:
Compounding pharmacy response time test for compounded supply: I email customer service at odd hours to test responsiveness.

Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. Filing an objection on the n=1 problem. Personal experience is genuine evidence about one person and very weak evidence about anybody else, and this thread keeps promoting the first into the second.

17 15mike_mealprep, NicoleRaleigh, james_edin and 14 others
Reply Quote Save Share Report
1567

Similar Threads

503A vs 503B compounding — regulatory framework explained4 replies
Compounded semaglutide stability: accelerated degradation study results6 replies
Lyophilized vs liquid peptides — stability and bioavailability comparison18 replies
Bacteriostatic water sourcing and sterility considerations8 replies
State-by-state compounding pharmacy regulations — 2026 map8 replies
ForumsNewTrendingMembersAccount

Log In

Forgot password?
No account? Register