| NPH can be challenging to understand. It can last around 12 hours, but peaks (works hardest) sometime after hour 5-6. If you forget to take it, test often and correct with fast acting insulin until it's time to take your next NPH. Overlapping NPH with fast acting to correct a high bg could result in a drastic hypo when you least expect it.
Some folks use NPH for (and sometimes even in addition to their Lantus and Novolog) to help compat dawn phenomenon. Which is what I suspect if you are only taking it 1x day and your dose it at night.
__________________ 
Type 1 Est.1984
MM 722 and CGMS
Humalog & Symlin
a1c 6.8 (5.12.08) 7.2 (6.26.08) 6.9 (7.24.08)
Vitrectomies 5/07 & 7/07
|