Which insulin type has no peak time?

Insulin Glargine, commonly known as Lantus, is known for its unique pharmacokinetics, which include a flat action profile and no distinct peak time. This means that it provides a steady release of insulin, helping to maintain more stable blood glucose levels throughout the day and night. This characteristic is particularly beneficial for individuals who require long-term basal insulin coverage, as it reduces the risk of hypoglycemia that can occur with insulin types that have pronounced peak times.

In contrast, Regular Insulin, NPH Insulin, and Ultralente Insulin all have defined peak times, which indicates the period after administration when the insulin is most effective at lowering blood sugar. For patients using these forms of insulin, it can be critical to time their meals and activities around the peak effect to prevent both hyperglycemia and hypoglycemia. This peak time variability is a key reason why Glargine is preferred as a long-acting insulin, offering a more predictable and consistent means of managing blood glucose levels.