What role does insulin play in the treatment of type 2 diabetes mellitus (DM)?

Updated: Oct 23, 2019
  • Author: Romesh Khardori, MD, PhD, FACP; Chief Editor: George T Griffing, MD  more...
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Answer

Ultimately, many patients with type 2 diabetes mellitus become markedly insulinopenic. The only therapy that corrects this defect is insulin. Because most patients are insulin resistant, small changes in insulin dosage may make no difference in glycemia in some patients. Furthermore, because insulin resistance is variable from patient to patient, therapy must be individualized in each patient.

A study by de la Pena et al found that although the overall insulin exposure and effects of 500 U/mL of insulin were similar to those of 100 U/mL of insulin, peak concentration was significantly lower at 500 U/mL, and the effect after the peak was prolonged; areas under the curve were similar for both doses. This observation should help guide therapy. [213]


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