My usual method of taking the bonus dose from the pen with a fixed needle insulin syringe failed today. After drawing it out the needle would not penetrate my skin. Trying different ares etc resulted in me accidentally squirting some of the dose out so I had to abandon it and use my new pen. I got the syringes from the well known place medical place everyone talks about and don’t know if it was just an odd blunt one. I would like a syringe that can have screw on needles that work with the ones we get supplied with our Mounjaro pens so I can draw up the dose with one, discard it and use a fresh one for the injection. Does anyone else do this? Or have any advice please?