Which medication is an example of a long-acting insulin?

Lantus is an example of a long-acting insulin because it is specifically designed to provide a consistent and prolonged release of insulin into the bloodstream, which helps to regulate blood sugar levels over an extended period. This type of insulin typically has a duration of action of about 24 hours, making it suitable for once-daily dosing in many patients. Long-acting insulins like Lantus are ideal for maintaining basal levels of insulin throughout the day and night, thereby helping to stabilize overall blood glucose levels in individuals with diabetes.

In contrast, Novolog, regular insulin, and Humulin R are examples of rapid-acting or short-acting insulins. Novolog starts working quickly after administration to manage blood sugar spikes during or after meals. Regular insulin and Humulin R also have a shorter duration of action compared to long-acting options. Therefore, Lantus is the correct choice in this context due to its long-acting properties, which offer specific therapeutic benefits for blood glucose control.