Diabetes Care, Vol 9, Issue 3 279-282, Copyright © 1986 by American Diabetes Association
Twice-daily mixed regular and NPH insulin injections with new jet injector versus conventional syringes: pharmacokinetics of insulin absorption
JP Halle, J Lambert, I Lindmayer, K Menassa, F Coutu, A Moghrabi, L Legendre, C Legault and G Lalumiere
The purpose of the present study was to evaluate the feasibility of using a
jet injector in a split and mixed regular and NPH insulin regimen and to
compare serum glucose and free-insulin profiles obtained with the injector
and the conventional syringe and needle. Twelve insulin-dependent diabetic
patients were hospitalized for 5 days. After a stabilization day, six
patients received their insulin injection with the injector for 2 days and
with the syringe and needle for the following 2 days; the regimen was
reversed for the other six patients. Diet, exercise, and insulin dosage
remained constant. The serum glucose levels with the injector were
consistently lower than those obtained with the syringe at all times of the
day except at 5:00 a.m. and 7:30 a.m., when mean values were similar for
both treatments. Free-insulin levels were higher with the injector from
10:30 a.m. to 4:30 p.m. These findings suggest that insulin absorption is
faster and possibly greater with the injector than with the syringe. When
switching from a syringe to an injector insulin program, insulin dose
adjustment may be necessary.