Intermediate-acting insulins

NPH Isophane Human Insulin Suspension. NPH isophane insulin, also called Humulin N, Insulatard NPH Human, or Novolin N is an intermediate-acting form of human insulin produced by recombinant DNA techniques. Mixtures Humulin 70/30 and Novolin 70/30 contain 70% NPH isophane and 30% regular, whereas Humulin 50/50 contains 50% NPH isophane and 50% regular. It is adrninistered subcutaneously and should not be given intravenously. Absorption is delayed because the insulin is conjugated with protamine in a complex of reduced isoelectric solubiUty. Therapeutically, this preparation is probably comparable to purified porcine NPH insulin. However, human NPH insulin may have a slightly shorter duration of action than comparable purified porcine products. 

Intermediate-acting insulins (NPH) Humulin N No InnoLet Vial, prefilled pen... 

Biphasic insulins are fixed dose combinations of a short-acting and intermediate-acting insulin in various proportions. Examples are Humulin, a biosynthetic human insulin (rDNA origin) suspension with respectively 20%, 30% and 40% regular and 80%, 70% and 60% isophane insulin and Mixtard, a biphasic biosynthetic human insulin suspension with respectively 10%, 20% and 40% soluble and 90%, 80% and 60% isophane insulin. 

Commercially available insuhns differ in their onset of action, maximal activity, and duration of action (Table 67.3). They can be classified as rapid acting (0-5 hours), short acting (0-8 hours), intermediate acting (2 to 16 hours), and long acting (4 to 36 hours). Human insulin (e.g. Humulin, Novolin) produced by rDNA technology is now widely available and has largely supplanted in-... 

Intermediate-acting insulin (e.g., NPH or isophane, lente, or zinc insulin)... 

Intermediate acting insulin lente, biosynthetic insulin NPH, biosynthetic... 

Semilente insulin is a suspension of amorphous insulin zinc. The onset is 1-3 hours after subcutaneous administration, reaches maximum effect in 5-10 hours and the effect lasts 10-16 hours. Isophane insulin (NPH Neutral solution. Protamine, Hagedorn s laboratoiy insulin) is an intermediate-acting preparation prepared with protamine. The maximum effect is reached in 4-12 hours and lasts 8-26 hours. Patients using these preparations who present for cardiac surgery are at increased risk for anaphylactic reactions to protamine. Ultralente insulin is a long-acting preparation formed with zinc rather than protamine. Zinc retards the release of insulin and these preparations have a duration of up to 36 hours. Protamine zinc insulin, which contains both protamine and zinc, has a duration of 28-36 hours. 

NPH insulin is an intermediate-acting insulin whose absorption and the onset of action are delayed by combining appropriate amounts of insulin and... 

Intermediate-acting insulin (half-life 16-20 hours)... 

Intermediate-acting Insulin zinc suspension (amorphous) 1-2 6-10 12-16... 

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