is there any reason not to just always use 2ml
#reconstitution 2025-08-10
Sunday32 messages5 participantstimes are UTC
Highlights from this day
- evidence_or_not — 15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it, someone check my working 22:54
- lyophile_liv — does it matter if i inject the bac water straight at the powder 22:57
- lyophile_liv — you can absolutely just always use 2ml, and honestly most of us should 22:59
- evidence_or_not — quick one give it 5 minutes at room temperature before you decide it has not dissolved you can absolutely just always use 2ml, and honestly most of us should 23:16
- evidence_or_not — the meniscus thing is real. read it at eye level or you are guessing by a unit either way 23:24
20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy
thats the vacuum
the last few units are a real loss. i accept it rather than tilting the vial and drawing air
nope, redo it
15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it, someone check my working
🎉9👀4
weigh it first
does it matter if i inject the bac water straight at the powder
10mg vial
+ 1.0ml -> 10.0 mg/ml 0.5mg = 5u 1mg = 10u
+ 2.0ml -> 5.0 mg/ml 0.5mg = 10u 1mg = 20u
+ 2.5ml -> 4.0 mg/ml 0.5mg = 12.5u (dont)
+ 5.0ml -> 2.0 mg/ml 0.5mg = 25u 1mg = 50uyou can absolutely just always use 2ml, and honestly most of us should
🧊13
round numbers
📉18🧊1
a 3ml syringe for the diluent and a u100 for the dose is the setup most people here end up with
sanity check my maths before i pin myself with something stupid
bacteriostatic water for anything multi-use. sterile water has no preservative in it at all
ok so anyone else find the 5mg vials harder to get fully dissolved than the small ones
what do you do with the last 5 units when you cant draw them cleanly
it foamed. is it ruined
nobody here should be telling you a dose. we can check your arithmetic, thats a different thing
read it at eye level
quick one give it 5 minutes at room temperature before you decide it has not dissolved
you can absolutely just always use 2ml, and honestly most of us should
📈2⚠️3
thats fine
one unit is 0.01ml
not sterile water
the meniscus thing is real. read it at eye level or you are guessing by a unit either way
chromatogram-overlay.png
1240 × 720 · 804 KB · not retained in the public archive
unrelated but does benzyl alcohol matter if im finishing the vial in one go
[edited]follow up do you let it come to room temp before drawing or draw it cold
is it worth buying a 3ml syringe for the diluent or is the insulin one fine
swirl dont shake
write the date on
bac water or sterile water for something im going into weekly for 7 weeks
the powder is stuck to the stopper, do i care
5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose
quick one if i add 5ml to a 15mg vial what concentration am i actually at
foam is bad