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Fact sheet

Starting insulin (for people with type 2 diabetes)

Starting insulin is a normal part of managing type 2 diabetes. It can help you feel better and stay healthy.

Key facts

  • Many people with type 2 diabetes start insulin at some point. 

  • Insulin lowers blood glucose levels and may be needed when other diabetes medicines don’t work well enough.

  • Starting insulin is normal and doesn’t mean you’ve failed at looking after your diabetes. 

  • Insulin can help you feel better and stay healthy. It may cause side effects like low blood glucose levels.
  • Your diabetes health professional can help by showing you how to use insulin and manage side effects.
  • You can still enjoy your everyday life including driving and travel.

Why insulin is important

Type 2 diabetes affects your body’s ability to regulate blood glucose levels.  

This is because your body no longer makes enough insulin, and/or the insulin it makes does not work very well. Insulin is needed to move glucose from your blood into your cells, where it is used for energy. 

Diabetes medicines can help your body to make more insulin or help insulin work better. But over time, these medicines may no longer be enough to keep your glucose levels in a healthy range. When this happens, you may need to start insulin. 

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Did you know?

About 1 in 4 Australians with type 2 diabetes use insulin.

When you may need to start insulin

Many people with type 2 diabetes start insulin a few years after they are diagnosed. Some people need it sooner. Everyone is different. 

Starting insulin does not mean you have “failed”, it is just part of looking after your diabetes.

Another reason you may need to start insulin is if other diabetes medicines give you serious side effects. Or, if you have health conditions or other issues that make it hard to use diabetes medicines. 

Benefits of insulin

Lowers blood glucose

Insulin works well to bring your blood glucose levels down. It may take a week or two to find the type and dose of insulin that is right for you. Checking your blood glucose levels at home and an HbA1c check will help you see how insulin is working. 

Helps you feel better

When your blood glucose levels are in your target range, you will have more energy and feel better. 

Helps you stay healthy

Keeping your blood glucose in your target range helps reduce your risk of diabetes-related complications. It can also help slow any complications you have from getting worse. 

Wondering if insulin is right for you?

Writing your own list of insulin pros and cons can help you decide. Download this decision tool to write your list.

Possible side effects

Like all medicines, insulin can sometimes have side effects. Your health professional can advise you on how to manage these. 

Low blood glucose levels (hypos)

Your diabetes health professional will teach you to recognise and treat hypos, and what you can do to avoid them. They can also show you how to adjust your insulin if needed. 

Insulin can sometimes lower your blood glucose levels too much, below your target range. This is called hypoglycaemia or a hypo

Weight gain

When you start taking insulin, your body is better able to turn the glucose from your food and drink into energy. This means you may gain a little weight at first, often around 1 to 3 kg. Your diabetes health professional can help you manage this.  

Worried about starting insulin?

You are not alone. It is normal to have questions and concerns when starting insulin. Read the Concerns about starting insulin fact sheet, and find answers to common questions below.

Common questions about insulin

No. Type 1 and type 2 diabetes are different. People with type 1 diabetes need to use insulin as soon as they are diagnosed. People with type 2 diabetes can often use tablets or other injections to manage their diabetes for several years before they need to start insulin. 

No. Diabetes changes over time, and the way you manage it will need to change too. Using insulin can help you stay healthier by keeping your blood glucose levels within your target range.  

Many people say their insulin injections do not hurt, but everyone is different. Insulin needles are very small. Talk to your diabetes health professional if injecting insulin is painful for you – they may be able to help. 

It might feel hard at first, but most people find it easy once they get the hang of it. Your diabetes health professional can show you how to inject insulin. Ask them if you can practice with them at the clinic.  

Many people worry that their family and friends will see them as ‘sick’ and treat them differently. Talking to your loved ones about what starting insulin means for you will help them understand and support you. They may be happy to know that taking insulin means you are looking after yourself and will help you feel better. 

You will need to take insulin once or more each day at set times. For example, before breakfast, or with meals. Most people find it fits in with their usual daily routine. 

Yes, you can. You can inject insulin wherever you feel comfortable, like a restaurant table or somewhere private if it suits you better. No one should make you feel uncomfortable about taking your insulin when and where you need to.  

That is up to you. Many people let their loved ones know they are taking insulin and what to do in case of a hypo. Some people ask their family and friends to help them manage their diabetes. Others prefer to manage their diabetes themselves and keep it private.

In the first couple of months after starting insulin, you may need to see your doctor or diabetes nurse practitioner more often. This is so you can talk about how the insulin is working for you and learn about adjusting your dose if needed. After this, you will see them about every 3 to 6 months.

Yes. You will still be able to travel. You will need to plan carefully and pack all your diabetes supplies with plenty of spares. For example, a letter from your doctor, medicine prescriptions, insulin, needles, pens, and glucose monitoring supplies.  

For a smooth trip, talk with your diabetes health professional about how to prepare for travel. You can read more about diabetes and travel here

Many people who use insulin also drive. But you will need to tell your local driving authority about your diabetes and provide a regular ‘fitness to drive’ medical certificate. The main risk is having a hypo so there are extra precautions you must take to keep yourself and others safe on the road.  

Before your appointments, think about what you would like to talk about. It can help to write a list of questions or prompts to remind you on the day, for example:

  • What is my target HbA1c? 
  • Is my most recent HbA1c in my target range? 
  • What are my treatment options? 
  • What type of insulin would be best for me and why? 
  • Will I have to check my blood glucose levels at home? How often? 
  • Can you show me how to use an insulin injection device? 
  • Can I practice injecting during an appointment? 
  • What kind of support and education is available to me? 
  • I need more information on: ____________ 

When to see a health professional

Make an appointment with your doctor, nurse or diabetes educator if you:

  • want to know if insulin could help you manage your diabetes. 
  • have concerns about starting insulin.  
  • have started insulin and are experiencing side effects.  
  • have started insulin and having problems with the injections.   

Starting insulin is a common and normal step in managing type 2 diabetes. It can help you feel well and stay healthy. 

With support from your diabetes health professional, you can learn to use insulin safely and continue living your life to the full.

More information and support

  • Learn more about a medicine or insulin type: Talk to your doctor, diabetes nurse practitioner or pharmacist, or go to https://www.nps.org.au/medicine-finder
  • Call the NDSS Helpline on 1800 637 700: Ask to speak to a credentialled diabetes educator or where you can find more information and support.
  • Find a diabetes educator: Visit the Australian Diabetes Educators Association (ADEA) at adea.com.au to find a credentialled diabetes educator (CDE) near you. 
  • Go to the NDSS Diabetes Programs page: Find NDSS programs and services near you or online. 

Disclaimer

This information is intended as a guide only. It should not replace individual medical advice and if you have any concerns about your health or further questions, you should contact your health professional.