update on the earlier thing 5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose, we shall see
#reconstitution 2026-03-19
Thursday36 messages7 participantstimes are UTC
Highlights from this day
- surpass_two — do i swirl for a specific length of time or just until its clear 18:07
- u100_pat — anyone worked out a recon volume that puts 2.5mg on a round unit mark took me a year to stop over-diluting. the measurement error at 4 units is worse than the… 20:19
- u100_pat — bacteriostatic water for anything multi-use. sterile water has no preservative in it at all, someone check my working 20:32
- u100_pat — gross powder mass is not net peptide. water and counterion are in that number 20:35
- mg_per_ml — the jewellery scale is a good habit but calibrate it, they drift badly 20:51
clear or bin it
if the powder is on the stopper, tap it down before you add anything. it will still dissolve either way
anyone got a photo of what a properly dissolved vial looks like
do i swirl for a specific length of time or just until its clear
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10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100
a 3ml syringe for the diluent and a u100 for the dose is the setup most people here end up with
swirl it. do not shake it. the foam is denatured protein and you are not getting it back
while im here does benzyl alcohol matter if im finishing the vial in one go
one unit is 0.01ml
15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it
dead space
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nobody here should be telling you a dose. we can check your arithmetic, thats a different thing
i swirl for about thirty seconds and then leave it. never had one fail to dissolve
anyone else find the 15mg vials harder to get fully dissolved than the small ones
foam is bad
coa-a-2418.pdf
1 page · 162 KB · not retained in the public archive
thats fine
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is there any reason not to just always use 2ml
slightly off topic but aim the diluent at the glass wall, not at the powder. it goes in gentler
read it at eye level
is it normal for the cake to look slightly collapsed on one side
anyone worked out a recon volume that puts 2.5mg on a round unit mark
took me a year to stop over-diluting. the measurement error at 4 units is worse than the convenience
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write the date on
i have never once regretted using a rounder number and a slightly bigger volume
label the vial
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i write the mg/ml on the vial with a sharpie the moment i reconstitute it
bacteriostatic water for anything multi-use. sterile water has no preservative in it at all, someone check my working
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label the date too. you will not remember which vial is which by week 9
gross powder mass is not net peptide. water and counterion are in that number
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not sterile water
lot-log.csv
560 rows · not retained in the public archive
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slightly off topic but i keep a spare vial of bac water in the fridge purely so i never rush the maths
the last few units are a real loss. i accept it rather than tilting the vial and drawing air
round numbers
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took me a year to stop over-diluting. the measurement error at 4 units is worse than the convenience
sorry to jump in dead space in a standard insulin syringe hub is small but it is not nothing over a month
the jewellery scale is a good habit but calibrate it, they drift badly
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