When I picked up the lantus pen the pharmacist included yellow pen needles. I notice in the examples the pen needles are green. This must indicate "sizes" are the yellow ones ok to use?
People here use syringes to draw doses. You can only get measure in whole units with pen needles. Return the pen needles and get 1/2 unit marked syringes. We make changes by 1/4 unit at a time, by eyeballing on the 1/2 units.
We don't use the pen needles at all ....we use regular insulin syringes and pull the insulin out of the pen so we can adjust the dose in smaller increments.
They're also available at WalMart if you have one near you..Their Relion Brand 3/10ml, 3o or 31 gauge, 8mm insulin syringes all come with half unit markings and are only $12.58 for a box of 100 (although it seems a lot of WalMart employees don't realize that they DO come with half unit markings!!)