Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Diabetes Health Center

Select An Article

Type 1 Diabetes

Font Size

How Is It Treated? continued...

Several types of insulin are available.

  • Rapid-acting starts to work in about 15 minutes. It peaks around 1 hour after you take it and continues to work for 2 to 4 hours.
  • Regular or short-acting gets to work in about 30 minutes. It peaks between 2 and 3 hours and keeps working for 3 to 6 hours.
  • Intermediate-acting won’t get into your bloodstream for 2 to 4 hours after injection. It peaks from 4 to 12 hours and works for 12 to 18 hours.
  • Long-acting takes several hours to get into your system and lasts for about 24 hours.

Your doctor may start you out with two injections a day of two different types of insulin. You’ll probably progress to three or four shots a day.

Most insulin comes in a small glass bottle called a vial. You draw it out with a syringe that has a needle on the end, and give yourself the shot. Some now comes in a prefilled pen. One kind is inhaled. You can also get it from a pump -- a device you wear that sends it into your body via a small tube. Your doctor will help you to pick the type and the delivery method that’s best for you.

Lifestyle Changes

Exercise is an important part of treating type 1. But it isn’t as simple as going out for a run. You have to balance your insulin dose and the food you eat with any activity, even simple tasks around the house or yard.

Knowledge is power. Check your blood sugar before, during, and after an activity to find out how it affects you. Some things will make your levels go up; others won't. You can lower your insulin or have a snack with carbs to prevent it from dropping too low. 

If your test is high, test for ketones -- acids that can result from high sugar levels. If they’re OK, you should be good to go. If they’re high, skip the workout.

You’ll also need to understand how food affects your blood sugar. Once you know the roles that carbs, fats, and protein play, you can build a healthy eating plan that helps keep your levels where they should be. A diabetes educator or registered dietitian can help you get started.

Next Article:

Today on WebMD

Diabetic tools
Symptoms, diagnosis, treatment, and more.
woman flexing muscles
10 strength training exercises.
Blood sugar test
12 practical tips.
Tom Hanks
Stars living with type 1 or type 2.
kenneth fujioka, md
Can Vinegar Treat Diabetes
Middle aged person
Home Healthcare

Prediabetes How to Prevent Type 2 Diabetes
type 2 diabetes
food fitness planner