Extreme cases, where drugs are insufficient, may require injections of insulin. Insulin may also be used in cases where very accurate control of blood glucose levels are desired, such as when a diabetic requires an operation or treatment of an injury. | Extreme cases, where drugs are insufficient, may require injections of insulin. Insulin may also be used in cases where very accurate control of blood glucose levels are desired, such as when a diabetic requires an operation or treatment of an injury. |