List of products in the National Drug Code with proprietary name afrezza. Inhaled insulin powder is used with a proper diet and exercise program to control high blood sugar in people with diabetes. Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Proper control of diabetes may also lessen your risk of a heart attack or stroke. This man-made insulin product is the same as human insulin. It replaces the insulin that your body would normally make. It is a short-acting insulin. It works by helping blood sugar (glucose) get into cells so your body can use it for energy. This product is absorbed into the blood through your lungs. It starts working faster and lasts for a shorter time than regular insulin injected under the skin. It is usually used in combination with a medium- or long-acting insulin product. This medication may also be used alone or with other oral diabetes drugs (such as metformin).