I have never had a problem with the insulin pen but I did have an occasional
problem with a few of the tips that fit on them. I used to just toss
them and had better luck with the next one. If you have problems with
the pen either phone the company(toll free)or you can just hand them back to the place of purchase and they send/give you another one or coupon if it's a manufacture defect/bad lot. When ever i miss my insulin my blood sugar goes crazy, so can't afford to miss insulin.
You should always keep a vial of fast-acting Insulin plus syringes, just
in case. Having a vial of long-acting is helpful also when you need it.
