Insulin NPH (Humulin N, Novolin N) is an intermediate-acting insulin that is a suspension of crystalline zinc insulin combined with the positively charged polypeptide protamine. Unlike the shorter-acting insulins, NPH has a longer duration of action, yet not as long as the newer long-acting insulins.

Is regular insulin Intermediate acting?

Short- and Intermediate-Acting Insulin

Regular insulin lasts for about 5-8 hours and provides coverage for meals consumed within 30-60 minutes after administration. The “R” with the insulin name helps identify it as Regular. Intermediate-acting insulin includes NPH (N) and lente (L) insulin (Humulin® or Novolin®).

Is Lantus intermediate acting?

Long-acting insulins are also called basal or background insulins. They keep working in the background to keep your blood sugar under control throughout your daily routine. There are currently four different long-acting insulin products available: insulin glargine (Lantus), lasts up to 24 hours.