People with type 1 diabetes require multiple insulin injections each day to maintain safe insulin levels. Insulin is often required to treat type 2 diabetes too. Using an insulin pump is an alternative to injections. The pump is about the size of a pager and is usually worn on your belt. Insulin is delivered through a small tube (catheter) that is placed under the skin (usually in the abdomen).
There are four major types of insulin:
Your doctor will determine your dose and how often you need to take insulin. There is no standard insulin dose as it depends on factors such as your body weight, when you eat, how often you exercise and how much insulin your body produces.