do you let it come to room temp before drawing or draw it cold
#reconstitution 2026-01-06
Tuesday43 messages9 participantstimes are UTC
Highlights from this day
- identity_shift — bacteriostatic water for anything multi-use. sterile water has no preservative in it at all 15:45
- steady_state_sue — does benzyl alcohol matter if im finishing the vial in one go 16:31
- vialkeeper — slightly off topic but coming back after 26 months, has the pinned recon volume advice changed 18:01
do i swirl for a specific length of time or just until its clear
🧊3
the last few units are a real loss. i accept it rather than tilting the vial and drawing air
bacteriostatic water for anything multi-use. sterile water has no preservative in it at all
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 = 50udo not add more bac water to an already reconstituted vial, you have lost track of the concentration
the jewellery scale is a good habit but calibrate it, they drift badly
i keep a spare vial of bac water in the fridge purely so i never rush the maths
for the archive can i add more bac water later to a vial ive already reconstituted
is a slightly cloudy solution ever ok or is that always a bin it
does benzyl alcohol matter if im finishing the vial in one go
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 = 50ugenuine question im getting bubbles in the barrel every single time, what am i doing wrong
label the date too. you will not remember which vial is which by week 23
if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space
how long after reconstituting before its actually dissolved
20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy
does temperature of the bac water matter at all
is it normal for the cake to look slightly collapsed on one side
swirl dont shake
is there any reason not to just always use 2ml
📈1🎉4
genuine question 10mg in 1ml is 10mg/ml, so 2.5mg is 25 units. thats the one i use
round numbers
coming back to this the powder is stuck to the stopper, do i care
how do you all measure a half unit, or do you just not
Reminder set. I will post here in 3 days.
it should be completely clear with no floaters. cloudy means stop
slightly off topic but coming back after 26 months, has the pinned recon volume advice changed
⚠️10
bac water or sterile water for something im going into weekly for 5 weeks
a 3ml syringe for the diluent and a u100 for the dose is the setup most people here end up with
if i add 1ml to a 20mg vial what concentration am i actually at
Purity check: no report on file for lot H-2814. Nothing logged either way.
how much do i lose to dead space with a 31G pin
thats fine
😂2
10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100
why does everyone say 2ml specifically and not 1ml
30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right
my vial pulled the water in on its own, is that the vacuum or did i do something
do you draw up with the same pin you inject with
sanity check my maths before i pin myself with something stupid
it foamed. is it ruined
anyone got a photo of what a properly dissolved vial looks like
🧊3
unrelated but i use bac water even for a single-use vial because it stings less, which is not the reason it exists
a slightly collapsed cake is cosmetic. a puddle in the bottom is not
read it at eye level
[edited]weighing the vial before you reconstitute is the only way to catch an underfill