When I order it in split doses, I do ACBHS. I normally order it this way only for patients who require >50 units per dose. Our pharmacy gives us a notification that it is better absorbed in doses of 50 units or less, so we split it up. When pts go home and refuse to give themselves 5 injections daily (2 Lantus, 3 meal/correction) then I tell them to pull up their entire dose in one syringe (say, 90 units for example) and then prep 2 spots for injection...give some in one spot and some in another. Of course, we can't do it that way in the hospital, but it aids compliance after pts go home.