unpopular opinion: most of what gets said here about insulin syringe is guesswork
unpopular opinion: most of what gets said here about insulin syringe is guesswork — a position I have arrived at slowly and would like tested. Aim the stream down the wall of the vial rather than into the cake. Reconstitution is a solubility problem, not a mixing problem, and mechanical shear does nothing helpful.…
Research-use-only material is not approved for human use, so treat everything in this thread as arithmetic about solutions rather than instructions for a person.
units are a volume on a U-100 syringe, not a dose
That only works if the fill weight is exactly the label weight, and it usually is not exactly anything.
bacteriostatic water has the preservative, sterile water does not
15mg into 3mL is 5mg/mL, and 2mg of that is 40 units
That is sterile water, not bacteriostatic. Same appearance, different product, and it matters for a multi-draw vial.
That is sterile water, not bacteriostatic.
Right, and the arithmetic behind it: 15mg in 3mL is 5mg/mL, so 2mg is 40 units.
more water is not more drug, it is the same drug in a bigger volume
Agreed on the swirl. There is no reason to shake it and a good reason not to.
do the arithmetic before you reconstitute, not while holding a syringe