You can give yourself insulin with injections, an insulin pen or an insulin pump. There are different kinds of insulin. They all start working and keep working at different speeds. Your doctor will talk with you about what insulin to use. Your doctor might want you to use more than one kind of insulin every day.
Some insulins can be mixed together.
A flexible insulin regimen is one that lets you adjust the timing and amount of insulin to meet your needs. With a conventional regimen, you take insulin at set times and have to follow a strict schedule. A flexible regimen allows for changes in your schedule and lets you adjust your insulin as needed. For example, you might increase the dose of insulin if you eat a meal with a lot of carbohydrates. Or you might lower your insulin dose if you are going to exercise.