Insulin is a hormone that works by lowering levels of glucose (sugar) in the blood. Insulin lispro is a fast-acting insulin that starts to work about 15 minutes after injection, peaks in about 1 hour, and keeps working for 2 to 4 hours.
• Insulin lispro is used to improve blood sugar control in adults and children with diabetes mellitus.
• Insulin lispro is used to treat type 2 diabetes in adults.
• Insulin lispro is also used to treat type 1 diabetes in adults and children who are at least 3 years old.