Long-Acting Insulin Benefits | Diabetes Management

Insulin formulation designed to provide a prolonged effect in managing blood sugar levels for diabetic patients.
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Insulin Therapy | Diabetes Medication | Extended Insulin Effect | Insulin For Glucose Control
Prepared by Lee Cheng, reviewed by Jane Cox

Long-Acting Insulin FAQ


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How long does long-acting insulin last?

Long-acting insulin starts to work after 30 minutes to 4 hours, depending on the type. It usually lasts for 16 to 24 hours, depending on the type and your dose. You'll usually take it once or twice a day. Your doctor or diabetes nurse will tell you how much long-acting insulin to take.

How long does insulin work?

Duration: This gives information on how long the effect of the insulins lasts. Faster-acting insulins can control blood sugar levels for only a few hours. Long-acting insulin can work for around 24 hours or longer, depending on the type of medication. Long-acting insulin cannot stabilize post-meal blood sugar spikes.

What is long-acting insulin?

Long-acting insulin is sometimes also known as basal insulin. You may also need to use a rapid-acting insulin or short-acting insulin before meals to stop your blood glucose from going too high when you eat carbohydrates. Some people may take long-acting insulin along with other diabetes medicines to manage their blood glucose levels.

What is a long acting insulin analogue?

Ultra-long acting insulin analogues — once-daily dosing; may be useful when timing of insulin injection is not reliable every 24 hours. Examples include Tresiba ® (insulin degludec) and Toujeo ® (insulin glargine U300).

How long does insulin glargine last?

Insulin detemir is usually taken twice a day. Insulin glargine and insulin degludec last for longer and are usually taken once a day. Long-acting insulin starts to work after 30 minutes to 4 hours, depending on the type. It usually lasts for 16 to 24 hours, depending on the type and your dose. You'll usually take it once or twice a day.

Long-Acting Insulin References

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