Timesulin takes the uncertainty out of knowing whether or not the last insulin injection was administered - and how long ago that was. It offers the person with diabetes the security of knowing for sure that they administered their habitual shot, preventing them from having to deal with the sudden onset symptoms of high or low blood sugar while feeling anxious about not knowing. For all people with diabetes, timing of insulin administration is very important. Timesulin shows with certainty how much time has passed since the last injection.