I have been a diabetic 40 years (Type 1), and started on Lantis about a year ago, replacing NPH for my basal insulin (I also take Humalog with a
pen). I injected Lantis with a
syringe, and as I never had a problem with NPH when it sometimes entered a vessel, I did not draw back before injecting.
The result, when I hit a vessel in my leg, was a drop in blood suger from 180 to 30 in 1/2 hour!