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ForumsCompounding & FormulationCompounded semaglutide stability: accelerated degradation study results Page 2

Compounded semaglutide stability: accelerated degradation study results

kate.chem Mon, Jun 8, 2026 at 6:04 AM 6 replies 100 viewsPage 2 of 2
SleepDoc_PDX
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Jun 8, 2026 at 7:22 AM#6

The figures, for anyone assembling their own picture. Worth knowing that the injection site changes very little. Abdomen, thigh and upper arm are bioequivalent for semaglutide, so a site change is not a plausible explanation for a bad week.

Last edited: Jun 8, 2026 at 10:22 AM
5 0pete_nash, hank_denver, carlos_SATX and 2 others
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emily_PDX
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Jun 8, 2026 at 7:52 AM#7

A narrower follow-up, since the general answer is now clear:

What the dose-response curve actually looks like above 1.7mg, because the trial means hide how few people account for the extra loss?

4 24PharmD_Rodriguez, julia.endo, JessicaM_2024 and 1 other
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VendorMark
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Jun 8, 2026 at 8:22 AM#8
SleepDoc_PDX said:
Worth knowing that the injection site changes very little.

Adding the part of the answer the thread has not reached. Steady state is the thing most people miss. The terminal half-life is about a week, so every dose step takes four to five weeks to fully express itself. Judging a step at day ten is judging the ascent, not the plateau, and it is the single commonest reason people escalate before they needed to.

3 23MarkLI_maint, Dr.PeteFamMed, claudia_zurich
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kate.chem
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Jun 8, 2026 at 8:52 AM#9

Closing the loop on my own question.

Update. I did go to 2.4mg in the end, and the honest report is that it bought me less than the step before it and cost me two bad weeks. Worth knowing rather than worth repeating.

2 22jennifer_SEA, tyler_CSCS
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lucas_SP_BR
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Jun 8, 2026 at 11:18 AM#10
VendorMark said:
Steady state is the thing most people miss.

That is correct as far as it goes, and here is where it stops going. The mechanism that matters here is not stomach emptying, it is central. GLP-1 receptor agonism in the arcuate nucleus stimulates POMC neurons and suppresses AgRP/NPY signalling, which is why the effect is appetite and food salience rather than physical fullness. Delayed gastric emptying largely tachyphylaxes over the first months; the appetite effect does not.

Worth separating that from compounded supply, which this thread keeps folding into the same question. They behave differently and the advice does not transfer.

16 14tampaLisa73, KarenAZ_mom, zoe_NC and 13 others
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