Novalax belongs to ultra-short-acting insulin, which is a fast-acting insulin analogue with faster onset of action compared with short-acting insulin, with onset of action after 5 minutes of subcutaneous injection and peak value in 1-2 hours, and can last for 4-6 hours, which is more similar to insulin secretion after meal in normal people. Therefore, Novalax is suitable to be injected before meal to control the postprandial blood sugar of the corresponding meal. Because of the fast onset of action of Novalax, the injection method is more flexible, and if you miss a shot before a meal, you can make up for it during or immediately after the meal, while short-acting insulin is not recommended for application after a meal. In addition, Novalax has a short peak time and short duration of action, which can effectively reduce the incidence of hypoglycemia before the next meal. However, Novalax is an ultra-short-acting insulin, which can only be used to control the post-prandial blood glucose of each meal, so in most cases, it needs to be used in combination with basal insulin to achieve good control of fasting and post-prandial blood glucose.