Asthma, a chronic inflammatory disease of the airways, affects millions of Australians, with approximately 2.5 million people experiencing asthma symptoms annually. Medication plays a crucial role in managing asthma, and understanding the Australian asthma medication chart is vital for anyone living with this condition. Let's dive into the key medications, their purposes, and how they are classified.
The Australian Asthma Handbook, developed by the Australian Asthma Handbook Committee, provides evidence-based guidance on asthma management. It includes a medication chart that categorizes asthma medications into two primary groups: relievers (also known as 'rescue' medications) and preventers.
Reliever Medications
Reliever medications provide quick relief from asthma symptoms, such as shortness of breath and wheezing. They are used 'as needed' and are typically administered using an inhaler. The main reliever medication is short-acting beta2 agonists (SABA), which acts rapidly to open up the airways.
Short-acting beta2 agonists include:
- Salbutamol (Ventolin, Asmol, Airomir)
- Terbutaline (Bricanyl)
SABA inhalers can be used before exercise to prevent asthma symptoms (as-needed Prevention), or as a reliever when symptoms occur.
Adrenergic Bronchodilators
Another type of reliever medication is adrenergic bronchodilators, which work similarly to SABAs by relaxing the airways. These medications, however, are not typically used as a first-line treatment for asthma. They include epinephrine (adrenaline) and isoproterenol (Isuprel).
Epinephrine is primarily used for reverse reactions caused by beta-blockers and for treating anaphylaxis, while isoproterenol is less commonly used due to its more potent side effects and monitoring requirements.
Preventer Medications
Preventer medications are taken regularly to prevent asthma symptoms and reduce inflammation in the airways. They are primarily used daily, even when symptoms are not present, to control asthma in the long term.
The Australian Asthma Handbook recommends using combinations of an inhaled corticosteroid (ICS) and a long-acting beta2 agonist (LABA) in a single inhaler for preventer therapy, where possible. This approach improves asthma control and reduces side effects compared to taking ICS and LABA separately.
Inhaled Corticosteroids
Inhaled corticosteroids (ICS) are the main preventer medications for asthma. They reduce inflammation in the airways and are usually taken daily. Common ICS include:
- Beclometasone (Becloforte, Becate, Asmosil)
- Fluticasone (Flixotide)
- Mometasone (Asmanex)
- Budesonide (Pulmicort)
These medications are safe when used as directed, but long-term use of high doses can increase the risk of side effects such as oral thrush and hoarse voice, which can be minimized by using a spacer device with the inhaler.
Long-acting Beta2 Agonists
Long-acting beta2 agonists (LABAs) provide longer-acting бронхиальный бронхолитик relief from asthma symptoms compared to SABAs. They are typically combined with ICS in a single inhaler for preventer therapy. Common LABAs include:
- Formoterol (Foradile)
- Salmeterol (Serevent)
LABAs should never be used alone; they must be combined with an ICS to ensure adequate asthma control and minimize the risk of serious side effects like asthma exacerbations.
Other Preventer Medications
In addition to ICS and LABAs, other preventer medications may be used in specific situations:
- Leukotriene modifiers (Montelukast - Singulair) for children under 12 years old or those with mild asthma not controlled by ICS alone.
- Long-acting muscarinic antagonists (LAMAs -Tiortiopium - Spiriva) for adults with moderate-to-severe asthma not well-controlled by ICS and LABA combination therapy.
- Anti-IgE monoclonal antibodies (omalizumab - Xolair) for patients with severe allergic asthma who remain symptomatic despite optimized treatment with preventer medications.
These medications require a prescription and proper instruction on usage from a healthcare professional.
Understanding and using the Australian asthma medication chart correctly is essential for managing asthma effectively. If you think you may have asthma or are concerned about your current asthma medication, consult your healthcare provider for personalized advice and tailored treatment plans. Keep learning and stay informed to take control of your respiratory health.