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Mechanism Of Action
HUMULIN 70/30 lowers blood glucose by stimulating peripheral glucose uptake by skeletal muscle and fat, and by inhibiting hepatic glucose production. Insulins inhibit lipolysis and proteolysis, and enhance protein synthesis.
HUMULIN 70/30 combines an intermediate-acting insulin with the more rapid onset of action of regular human insulin. In healthy males (n=18) given HUMULIN 70/30 (0.3 unit/kg) subcutaneously, the pharmacologic effect began at approximately 50 minutes (range: 30 to 90 minutes) (see Figure 1). The effect was maximal at approximately 3.5 hours (range: 1.5 to 6.5 hours) and the mean duration of action was relatively long (approximately 23 hours; range: 18-24 hours).
Figure 1 should be considered only as a representative example since the time course of action of insulin may vary in different individuals or within the same individual. The rate of insulin absorption and consequently the onset of activity is known to be affected by the site of injection, physical activity level, and other variables [see WARNINGS AND PRECAUTIONS].
Figure 1: Mean Insulin
Activity Versus Time Profiles After Subcutaneous Injection of HUMULIN 70/30 or
HUMULIN® R U-100 (0.3 unit/kg) in Healthy Subjects.
In healthy male subjects given HUMULIN 70/30 (0.3 unit/kg) subcutaneously, the mean peak serum concentration occurred at 2.2 hours (range: 1 to 5 hours) after dosing.
The uptake and degradation of insulin occurs predominantly in liver, kidney, muscle, and adipocytes, with the liver being the major organ involved in the clearance of insulin.
Because of the absorption-rate limited kinetics of insulin mixtures, a true half-life cannot be accurately estimated from the terminal slope of the concentration versus time curve.
The effects of age, gender, race, obesity, pregnancy, or smoking on the pharmacokinetics of HUMULIN 70/30 have not been studied. Careful glucose monitoring and dose adjustments of insulin, including HUMULIN 70/30, may be necessary in patients with renal or hepatic dysfunction [see Use In Specific Populations].
Last reviewed on RxList: 1/27/2014
This monograph has been modified to include the generic and brand name in many instances.
Additional Humulin 70-30 Information
Humulin 70-30 - User Reviews
Humulin 70-30 User Reviews
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