my 10mg vial weighed 11.4g on the jewellery scale, is that wrong
#reconstitution 2026-04-12
Sunday42 messages8 participantstimes are UTC
Highlights from this day
- VialBot — Batch lookup B-0114: 8 independent reports on file, earliest 2025-09-28. 18:29
- marrow.mod — coming back to this if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space 19:34
- kev_measures — if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration 19:57
- homa_ir_hugo — slightly off topic but anyone got a photo of what a properly dissolved vial looks like 20:24
- kev_measures — give it 9 minutes at room temperature before you decide it has not dissolved 21:20
i write the mg/ml on the vial with a sharpie the moment i reconstitute it
it should be completely clear with no floaters. cloudy means stop, thats one data point
one unit is 0.01ml
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the powder is stuck to the stopper, do i care
Reminder set. I will post here in 4 days.
i was wrong about this last year: it is fine to draw cold, it just stings more going in
weighing the vial before you reconstitute is the only way to catch an underfill, still working it out
while im here 20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy
genuine question 15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it, anyway
Batch lookup B-0114: 8 independent reports on file, earliest 2025-09-28.
my vial pulled the water in on its own, is that the vacuum or did i do something
Inter-lab diff for lot B-0329: 98.1% vs 98.6%. Within expected range.
read it at eye level
medutest-report-a-2601.pdf
3 pages · 551 KB · not retained in the public archive
weigh it first
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thats the vacuum
whats the smallest volume you would trust yourself to measure on a u100
*VendorInvestigate not the other one
do not add more bac water to an already reconstituted vial, you have lost track of the concentration
for the archive is there any reason not to just always use 2ml
[edited]homa_ir_hugogenuine question 15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it, anyway
i have never once regretted using a rounder number and a slightly bigger volume
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10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100
bac water
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coming back to this if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space
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the last few units are a real loss. i accept it rather than tilting the vial and drawing air
i swirl for about thirty seconds and then leave it. never had one fail to dissolve
bac water or sterile water for something im going into weekly for 6 weeks
check your maths
5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose
if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration
swirl dont shake
clear or bin it
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round numbers
for the archive one unit is 0.01ml. 100 units is 1ml. everything else in this channel follows from that
slightly off topic but anyone got a photo of what a properly dissolved vial looks like
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too dilute imo
foam is bad
while im here can i add more bac water later to a vial ive already reconstituted
nope, redo it
pick the volume so your dose is a whole number of units. thats the entire trick
give it 9 minutes at room temperature before you decide it has not dissolved
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swirl it. do not shake it. the foam is denatured protein and you are not getting it back