A Guide for Humulin N Insulin - Intermediate-Acting Insulin

Helping Manage Your Pet’s Diabetes

By Sam Bourne.

  • Hypoglycemia
  • Diabetes

indications for Humulin N

Like all types of insulin, Humulin N is used to treat diabetes mellitus. A neutral protamine hagedorn insulin, Humulin N is intermediate-acting, meaning that it lasts longer than regular, unmodified insulin, but not quite as long as insulins like Levemir. Oftentimes Humulin N will combined with a faster acting insulin, allowing for a slightly quicker, and more accurate, means of controlling one's blood sugar levels.


No insulin should be injected into the same location every day, as this could result in scar tissue, which will affect absorption. Taking Humulin N with anabolic steroids, beta adrenergic blockers, MAOIs, aspirin, phenylbutazone, tetracycline can cause potentiation. The effects of Humulin N may decrease when taken with estrogen agents, glucocorticoids, progestin, thiazide diuretic, dobutamine, epinephrine, or furosemide. Burdock root may cause hypoglycemic effects and you may need to adjust dosages if taking with insulin. Thyroid hormones may cause an initial increase in blood sugar.


0.5 - 1 unit/kg subcutaneously 1-2 times a day.

Brand/Generic equivalents

Neutral Protamine Hagedorn (NPH) Insulin

Side Effects

Hyperglycemia-Somogyi effect, hypoglycemia, and possible heart failure (if taken with thiazolidinediones). Indications for heart failure are a shortness of breath, weight gain, and swelling of the limbs.

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Humulin N at a glance

  • 1For dogs and cats
  • 2NPH Insulin
  • 3Taken subcutaneously
  • 4Helps manage blood sugar

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