Insulatard HM 100 is a long-acting, human insulin suspension designed to help manage blood glucose levels in individuals with diabetes mellitus. It contains isophane insulin, also known as NPH insulin, which starts to lower blood glucose about 1.5 hours after injection, with a peak effect at 4-12 hours, and a duration of action of up to 24 hours. It is typically administered once or twice daily by subcutaneous injection, providing a stable and predictable glucose-lowering effect. This insulin is suitable for both Type 1 and Type 2 diabetes patients and is often used in combination with fast-acting insulin or oral diabetes medications to achieve optimal blood sugar control.