NPH- Intermediate-Acting Insulin

NPH is an intermediate-acting insulin. Onset is 1-2 hours, peak is 4-12 hours, and duration is 18-24 hours.

HINT: Neil Patrick Harris (NPH) is a hard-working actor of intermediate height. If you call him, he will be "on set" in 1-2 hours and he will stay there for up to 24 hours.

What is the Peak Time of NPH Insulin?

The NPH insulin peak time is about 4-6 hours with a duration of action of about 12 hours. Keep in mind that very small doses will have an earlier peak effect but a shorter duration of action, while larger doses will take a longer time to peak and a prolonged duration.

What are the Side Effects of NPH Insulin?

Common side effects of NPH insulin include low blood sugar, weight gain, swelling in the hands and feet, mild skin rash or itching, or thickening of the skin at the injection site.

Is NPH Insulin Cloudy?

Yes, NPH insulin does have a cloudy appearance.

To learn more about diabetes, check out our article on diabetes mellitus.