#reconstitution 2026-03-06

is it worth buying a 3ml syringe for the diluent or is the insulin one fine

gross powder mass is not net peptide. water and counterion are in that number, ill dig out the number

dead space

im getting bubbles in the barrel every single time, what am i doing wrong
my rule is one concentration for everything so i never have to think about it at 7am

label the vial

aim the diluent at the glass wall, not at the powder. it goes in gentler, anyway

how much do i lose to dead space with a 29G pin

does it matter if i inject the bac water straight at the powder

bacteriostatic water for anything multi-use. sterile water has no preservative in it at all
if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration

coming back to this a slightly collapsed cake is cosmetic. a puddle in the bottom is not

if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space

my 10mg vial weighed 11.4g on the jewellery scale, is that wrong

one unit is 0.01ml. 100 units is 1ml. everything else in this channel follows from that

give it 9 minutes at room temperature before you decide it has not dissolved, happy to be corrected

bac water or sterile water for something im going into weekly for 9 weeks

i keep a spare vial of bac water in the fridge purely so i never rush the maths

10mg in 1ml is 10mg/ml, so 2.5mg is 25 units. thats the one i use

5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose