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ForumsDosing & ProtocolsInsulin syringe unit conversion for compounded sema — my results so far Page 3

Insulin syringe unit conversion for compounded sema — my results so far

FranDenver Fri, Sep 26, 2025 at 3:28 PM 12 replies 1,282 viewsPage 3 of 3
PurityPaulOR
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Sep 29, 2025 at 1:14 AM#11
jim_asheville said:
They are two different exemptions from the same federal requirements and they buy different things.

No disagreement with jim_asheville. One condition attached. Worth adding the genuine exception, because it is real and narrow: a change made for an identified patient where the prescriber determines it produces a significant clinical difference for that patient. A grid of fixed doses offered to everybody is not that, whatever the intake form says.

Last edited: Sep 29, 2025 at 4:14 AM
45 20Dr.LeslieOBGYN, MikeNYC_runner and 42 others
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tane_welly
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Sep 30, 2025 at 10:54 AM#12
MounjBrad said:
Agreed, and it is worth saying that rounding to the nearest whole unit is usually acceptable at maintenance doses and is not acceptable at the bottom…

This answered a question I did not know how to ask. I will report back once I have actually tried it.

Last edited: Sep 30, 2025 at 1:54 PM
44 19carl_compliance, DanielChem_CHI, marco_milano and 41 others
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JessicaM_2024
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Oct 1, 2025 at 8:33 PM#13
jim_asheville said:
They are two different exemptions from the same federal requirements and they buy different things.

Pushing back on jim_asheville here. A research-chemical supplier selling lyophilised powder labelled research use only is not compounding and is not claiming to. It is a different legal universe with no pharmacy oversight, no patient relationship and no content guarantee, and conflating the two in these threads helps nobody.

I would rather be corrected than agreed with, if it comes to it.

43 18mike_mealprep, NicoleRaleigh, james_edin and 40 others
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Sigma-Aldrich — Research-Grade Standards

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

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Dr.PeteFamMed
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Oct 3, 2025 at 6:12 AM#14
FranDenver said:
I reconstituted a 10mg vial with 2ml of bacteriostatic water and I want someone to check my unit arithmetic before I draw anything, because I keep…

Comparison of compounded dosing arithmetic delivery formats I've tried:

FormatProsCons
Lyophilized vialLongest shelf life, lowest costRequires reconstitution
Pre-mixed vialReady to draw upShorter shelf life (28-45 days)
Pre-filled syringesMost convenientHigher cost, shorter shelf life
Sublingual dropsNo needlesLower bioavailability, less data

I use lyophilized vials for cost and stability. The reconstitution takes 30 seconds once you've done it a few times.

Last edited: Oct 3, 2025 at 7:12 AM
42 17Dr.BariatricHTX, LindaRN_retired, tommy_boulder and 39 others
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mike_mod
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Oct 4, 2025 at 3:50 PM#15

Moderator note: the sourcing question belongs in the vendor section and has been split out.

41 16PurityPaulOR, MaxMetOK, MounjBrad and 38 others
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