Salbutamol is a medicine used to treat cough, wheeze and difficulty breathing caused by respiratory problems such as asthma and COPD. It works as a bronchodilator (to open your airways) and is often called a reliever (to relieve breathing problems).
Salbutamol relieves your breathing problems quickly. It starts to work within a few minutes and the effect will last 3 to 5 hours.
Although it relieves breathlessness, salbutamol doesn’t prevent the breathlessness from happening.
In Aotearoa New Zealand salbutamol is available as a metered dose inhaler (MDI) and a nebulising solution
- Using salbutamol in an MDI helps the medicine go straight into your airways when you breathe in. This means that your airways and lungs are treated quickly and very little of the medicine gets into the rest of your body.
- Using a spacer with your MDI allows better delivery of the medication to your bronchial tubes.
- Inhalers are commonly called puffers, metered dose inhalers (MDIs) or aerosol inhalers because they contain hydrofluorocarbon propellant gases.
- Nebulisers are not often used because, for most people, puffer inhalers used with a spacer are just as effective. Nebulisers are only used when inhalers aren’t suitable, such as for very young children, older adults or very sick people in hospital.
- The information on this page is about salbutamol inhalers. Read more about nebulisers.
Read more about metered dose inhalers and inhalers and climate change.
Salbutamol metered dose inhalers are available in different brands
In Aotearoa New Zealand salbutamol metered dose inhalers are available as Salair® and Ventolin®.
- There's no difference in the amount of medicine between the different brands of inhaler but Ventolin doesn't contain any chlorofluorocarbons (CFCs) or alcohol in it.
- SalAir is fully funded with a prescription. If you choose the Ventolin brand you’ll have to pay part of the cost for it.
- From October 2023, the Respigen brand of salbutamol is no longer available in Aotearoa New Zealand. If you're still using a Respigen inhaler, you'll need to switch to a different brand.