Karen Chapman Novakovski - Associate Professor of Nutrition

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Medications & Diabetes

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Insulin Types

This chart contains information about different types of insulins. However, it is important to remember that the type and timing of insulin is different for each person.

Insulin Name Onset Peak Effect Duration
Rapid-Acting Insulins
Lispro Humalog® 5-15 minutes 30-75 minutes 2-3 hours
AspartNovolog® 10-20 minutes 1-3 hours 3-5 hours
Short-Acting Insulin
Regular (R) 30 minutes 2-5 hours 5-8 hours
Intermediate-Acting Insulin
NPH (N) 1-3 hours 6-12 hours 16-24 hours
Lente (L) 1-3 hours 6-12 hours 16-24 hours
Long-Acting Insulin
Ultralente (U) 3-5 hours 8-14 hours 18 hours
Very Long-Acting Insulin
Glargine Lantus®* 1 hour Evenly for 24 hours 24-28 hours

Premixed Insulins

NPH and Regular insulin mixed together in one of the following combinations. 70/30 or 50/50 30-60 minutes 2-12 hours up to 18 hours

*Lantus should not be mixed together in a syringe with any other form of insulin before use.

This handout contains general information on diabetes medication. It is not intended to replace medical advice. It is important to talk to your doctor or pharmacist about your dosage and any other questions that you may have.

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