i write the mg/ml on the vial with a sharpie the moment i reconstitute it
#reconstitution 2025-06-02
Monday41 messages8 participantstimes are UTC
Highlights from this day
- glasgow_vial — bacteriostatic water for anything multi-use. sterile water has no preservative in it at all 14:38
- igf_one_ivy — is there any reason not to just always use 2ml 15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it 14:39
- igf_one_ivy — dead space in a standard insulin syringe hub is small but it is not nothing over a month 14:40
lyophilised powder is far more robust than people think. it is the solution that is fragile
is a slightly cloudy solution ever ok or is that always a bin it
if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space
why does everyone say 2ml specifically and not 1ml
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i was wrong about this last year: it is fine to draw cold, it just stings more going in
my vial pulled the water in on its own, is that the vacuum or did i do something
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while im here you can absolutely just always use 2ml, and honestly most of us should
thats 5mg/ml
a slightly collapsed cake is cosmetic. a puddle in the bottom is not
yep 10 units
update on the earlier thing my rule is one concentration for everything so i never have to think about it at 7am, from memory
swirl dont shake
weights-monthly.csv
705 rows · not retained in the public archive
does temperature of the bac water matter at all
20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy, your mileage will differ
update from 20 months ago: switched to a single concentration and have not miscalculated since
10mg in 1ml is 10mg/ml, so 2.5mg is 25 units. thats the one i use, i have it written down somewhere
i use bac water even for a single-use vial because it stings less, which is not the reason it exists
i have never once regretted using a rounder number and a slightly bigger volume
my 10mg vial weighed 11.4g on the jewellery scale, is that wrong
the meniscus thing is real. read it at eye level or you are guessing by a unit either way
gross powder mass is not net peptide. water and counterion are in that number, n of 1 obviously
lyophilised powder is far more robust than people think. it is the solution that is fragile
fridge-temps.csv
318 rows · not retained in the public archive
bac water
how long after reconstituting before its actually dissolved
anyone worked out a recon volume that puts 10mg on a round unit mark
bacteriostatic water for anything multi-use. sterile water has no preservative in it at all
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is there any reason not to just always use 2ml
15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it
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dead space in a standard insulin syringe hub is small but it is not nothing over a month
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weigh it first
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coming back after 24 months, has the pinned recon volume advice changed
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foam is bad
lot-log.csv
420 rows · not retained in the public archive
is it worth buying a 3ml syringe for the diluent or is the insulin one fine
the vacuum will pull it in. let it. fighting it is how you get a face full of aerosol
im getting bubbles in the barrel every single time, what am i doing wrong
thats the vacuum
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label the vial
one unit is 0.01ml
truncation_truis it worth buying a 3ml syringe for the diluent or is the insulin one fine the vacuum…
sorry to jump in does it matter if i inject the bac water straight at the powder
took me a year to stop over-diluting. the measurement error at 4 units is worse than the convenience
do not add more bac water to an already reconstituted vial, you have lost track of the concentration
30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right