Ideas on getting rid of bubbles:
To eliminate bubbles: If drawing insulin from a vial, set the syringe plunger to the dosage you want to draw, put the needle into the top of the vial while the vial is still upright, and push all the air out of the syringe. This will maintain air pressure equilibrium in the vial once you draw the dose and, because the vial is upright, will not cause air bubbles to mix with the solution. Turn the vial upside down and draw the insulin slowly. See note.
If you do get air bubbles into the syringe, it's ok with most insulins to re-inject the insulin into the vial and draw again until the air is gone[22]. Check that this is ok with your insulin. See also injecting insulin. Slower draw is less likely to draw bubbles. ( Sue: Is this okay with ProZinc? I never did it with PZI.)
Another way to get rid of syringe air bubbles is to hold the syringe upright and give it a tap or two with your finger. The problem with having air bubbles in the injection is that you will not be getting the full dose of insulin; the bubbles take the place of it[23].
Some people prefer to gently jiggle their vials to make any air bubbles rise to the top, away from where the needle will draw[24].