Glulisine is a rapid-acting insulin used to manage blood sugar levels in people with diabetes. It helps control blood glucose levels after meals by quickly lowering blood sugar. Glulisine is typically injected subcutaneously and is often taken just before or shortly after eating. This insulin works by mimicking the natural insulin produced by the pancreas in response to food intake. Its fast onset and short duration make it effective for managing post-meal spikes in blood sugar. Glulisine is commonly prescribed alongside long-acting insulins to provide comprehensive blood sugar control throughout the day.