20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy
#reconstitution 2026-03-27
Friday49 messages10 participantstimes are UTC
Highlights from this day
- c18_column — is the meniscus reading actually a real source of error or am i overthinking 17:09
- c18_column — 15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it 17:17
- maintenance_mo — how long after reconstituting before its actually dissolved 17:50
- u100_pat — if the maths gives you 13.7 units, change the volume. do not try to hit 13.7 21:15
- split_dose_sam — 30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right, take that with a pinch of salt 21:22
is the meniscus reading actually a real source of error or am i overthinking
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15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it
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the vacuum will pull it in. let it. fighting it is how you get a face full of aerosol
write the date on
nope, redo it
read it at eye level
ok so swirl it. do not shake it. the foam is denatured protein and you are not getting it back
10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100
how long after reconstituting before its actually dissolved
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i was wrong about this last year: it is fine to draw cold, it just stings more going in, ymmv
a 3ml syringe for the diluent and a u100 for the dose is the setup most people here end up with, n of 1 obviously
it should be completely clear with no floaters. cloudy means stop
dead space in a standard insulin syringe hub is small but it is not nothing over a month
bac water or sterile water for something im going into weekly for 6 weeks
how do you all measure a half unit, or do you just not
follow up one unit is 0.01ml. 100 units is 1ml. everything else in this channel follows from that, thats just me
my vial pulled the water in on its own, is that the vacuum or did i do something
thats the vacuum
thats fine
if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space, ill dig out the number
is a slightly cloudy solution ever ok or is that always a bin it
benzyl alcohol is what makes it bacteriostatic. it is about 0.9% typically, your mileage will differ
do i swirl for a specific length of time or just until its clear
one unit is 0.01ml
aim the diluent at the glass wall, not at the powder. it goes in gentler
the jewellery scale is a good habit but calibrate it, they drift badly
weighing the vial before you reconstitute is the only way to catch an underfill
do not add more bac water to an already reconstituted vial, you have lost track of the concentration
dead space
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my 10mg vial weighed 11.4g on the jewellery scale, is that wrong
5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose
why does everyone say 2ml specifically and not 1ml
nobody here should be telling you a dose. we can check your arithmetic, thats a different thing
*that should say weekly
too dilute imo
anyone got a photo of what a properly dissolved vial looks like
yep 10 units
weigh it first
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temperature of the diluent does not matter. how fast you push it in does
i swirl for about thirty seconds and then leave it. never had one fail to dissolve
i use bac water even for a single-use vial because it stings less, which is not the reason it exists
bacteriostatic water for anything multi-use. sterile water has no preservative in it at all, i could be wrong
thats 5mg/ml
if the maths gives you 13.7 units, change the volume. do not try to hit 13.7
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i write the mg/ml on the vial with a sharpie the moment i reconstitute it, your mileage will differ
30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right, take that with a pinch of salt
[edited]do you let it come to room temp before drawing or draw it cold
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round numbers
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