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NovoLog Mix 70/30 (insulin aspart protamine and insulin aspart rdna origin) (70% insulin aspart protamine suspension and 30% insulin aspart injection, [rDNA origin]) is a human insulin analog suspension containing 70% insulin aspart protamine crystals and 30% soluble insulin aspart. NovoLog Mix 70/30 is a blood glucose­lowering agent with an earlier onset and an intermediate duration of action. Insulin aspart is homologous with regular human insulin with the exception of a single substitution of the amino acid proline by aspartic acid in position B28, and is produced by recombinant DNA technology utilizing Saccharomyces cerevisiae (baker's part (NovoLog) has the empirical formula C₂₅₆H₃₈₁N₆₅O₇₉S₆ and a molecular weight of 5825.8 Da.

Figure 1: Structural formula of insulin aspart

NovoLog Mix 70/30 (insulin aspart protamine and insulin aspart rdna origin) is a uniform, white, sterile suspension that contains insulin aspart 100 Units/mL.

Inactive ingredients for the 10 mL vial are mannitol 36.4 mg/mL, phenol 1.50 mg/mL, metacresol 1.72 mg/mL, zinc 19.6 μg/mL, disodium hydrogen phosphate dihydrate 1.25 mg/mL, sodium chloride 0.58 mg/mL, and protamine sulfate 0.32 mg/mL.

Inactive ingredients for the NovoLog Mix 70/30 (insulin aspart protamine and insulin aspart rdna origin) FlexPen are glycerol 16.0 mg/mL, phenol 1.50 mg/mL, metacresol 1.72 mg/mL, zinc 19.6 μg/mL, disodium hydrogen phosphate dihydrate 1.25 mg/mL, sodium chloride 0.877 mg/mL, and protamine sulfate 0.32 mg/mL. NovoLog Mix 70/30 (insulin aspart protamine and insulin aspart rdna origin) has a pH of 7.20 - 7.44. Hydrochloric acid or sodium hydroxide may be added to adjust pH.

Last reviewed on RxList: 6/9/2010
This monograph has been modified to include the generic and brand name in many instances.