Novorapid 100IU/ml Penfill 3 ml is used for the treatment of diabetes mellitus in both children (above two years of age) and adults. It typically begins working after 10-20 minutes and will last for between 3 and 5 hours. Due to this short action, it should normally be taken in combination with intermediate-acting or long-acting insulin preparations. It contains Insulin aspart, which works by ensuring rapid and consistent sugar control. It is a fast-acting form of insulin that helps lower blood sugar levels after food intake. It prevents the risk of having severe complications of diabetes. It stimulates the recovery of sugar in muscle and fat cells and thus suppresses sugar production in the liver. It may cause common side effects such as hypokalaemia (low potassium), hypoglycaemia (low blood sugar level), local injection site reactions, lipodystrophy (fat deposition under the skin), rash, and itching at the injection site. Along with this medicine, you should take a healthy diet, exercise regularly, and maintain weight as advised by your doctor.