Can I use my insulin injection twice?

Use the same syringe twice? Is that what you mean? If so, after one use the syringe/needle is not sterile any more and you could cause an infection.

Do not use the same needle twice! This can cause an infection. If you want a sincere answer, call your doctor or your educators.

Using needles or disposable syringes and lancets twice or more is supposed to render them unsterile and cause infections. My thought is this stuff is really expensive and if I am the only one using it and I use alcohol swabs before injecting or pricking my finger, then there is no reason why I cannot cap the needle or syringe and use it again. The needles do become less sharp the more times we pierce our skin, so that is a consideration. On the injector pens sometimes they allow air to get into the barrel of the pen, and this is another consideration. I use my bolus needle 3 times and my lancet point for a full vial of strips. If you want the cons of using the needles and lancets more than once, just go to any of the diabetes websites dealing with insulin and you will get the reasons for not using this stuff more than one time. sorry I have no link to justify my own actions. For me it is a matter of my bank account and what my insurance will pay.

do you mean use the same needle? it would be hard to use the same insulin after you have injected it. re using needles- you're not supposed to its dirty and blunt needles discourage people from taking their shots but I do it all the time, I really only change the needle once a day, and use it 3 or 4 times, this does not change your diabetes management, it just makes the sites you regularly use a bit tender. one problem I have noticed is the needle can become clogged, but you will notice this with your test shot when no insulin comes out.