Can a diabetic take an insulin shot once a week?

Diabetic patients usually cannot take insulin injection once a week.
Insulin can be divided into rapid-acting, short-acting, intermediate-acting, long-acting and premixed insulin, of which rapid-acting insulin and short-acting insulin have a faster onset of action and can be used to control postprandial blood glucose, intermediate-acting insulin provides the daily basal dosage of insulin, premixed insulin can also replace the basal insulin to play a role in secretion, and long-acting insulin can maintain a constant concentration for 24 hours, and is usually administered once a day.
Therefore, even long-acting insulin is not able to maintain a 7-day duration of action, so a weekly insulin injection is not consistent with the duration of action of insulin.
If the daily dose of insulin is insufficient, it will not be able to achieve the effect of blood glucose control, and long-term poor blood glucose control can lead to diabetic nephropathy, retinopathy and other complications, so diabetic patients generally can not be insulin injection once a week.
Diabetic patients who need to use insulin treatment should use it under the guidance of a doctor. For more information about diabetes, please consult an endocrinologist.