People have the right to be involved in discussions and make informed decisions about their care, as described in NICE's information on making decisions about your care. Information about decision making is also available from Realistic medicine.
Making decisions using NICE guidelines and Using SIGN guidelines explains how we use words to show the strength (or certainty) of our recommendations, information about prescribing medicines (including off-label use), professional guidelines, standards and laws (including on consent and mental capacity), and safeguarding.
In this guideline, the NHS refers to NHS England and NHS Scotland unless stated otherwise. The recommendations are for all age groups unless indicated otherwise in the heading of the guideline section.
Health professionals should follow these NICE guidelines for people delivering care:
In addition, health professionals in England should follow these NICE guidelines for people delivering care:
In addition, health professionals in Scotland should follow Scottish Government guidance for people delivering care:
1.6 Principles of pharmacological treatment
Licensed indications for asthma inhalers vary between different medicines, different doses and different devices. Not all asthma inhalers are licensed for use in line with the recommendations in this guideline. See NICE's information on prescribing medicines or SIGN's information on prescribing licensed medicines out with their marketing authorisation and refer to the summary of product characteristics for individual products.
1.6.1
Take into account and try to address the possible reasons for uncontrolled asthma before starting or adjusting medicines for asthma in adults, young people and children. These may include:
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alternative diagnoses or comorbidities
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suboptimal adherence (see the recommendation on adherence)
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suboptimal inhaler technique
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smoking (active or passive), including vaping using e-cigarettes
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occupational exposures (see the recommendation on checking for possible occupational asthma).
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psychosocial factors (for example, anxiety and depression, relationships and social networks)
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seasonal factors
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environmental factors (for example, air pollution, indoor mould exposure). [NICE 2017, BTS/SIGN 2019, amended BTS/NICE/SIGN 2024]
1.6.2
If possible, check the fractional exhaled nitric oxide (FeNO) level when asthma is uncontrolled. If it is raised this may indicate poor adherence to treatment or the need for an increased dose of inhaled corticosteroid (ICS). [BTS/NICE/SIGN 2024]
1.6.3
Do not prescribe short-acting beta2 agonists to people of any age with asthma without a concomitant prescription of an ICS. [BTS/NICE/SIGN 2024]
1.6.4
After starting or adjusting medicines for asthma, review the response to treatment in 8 to 12 weeks (see the recommendations on monitoring asthma control). [NICE 2017, amended BTS/NICE/SIGN 2024]
Inhalers
1.6.5
Base the choice of inhaler(s) for asthma on:
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an assessment of correct technique
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the preference of the person receiving the treatment
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the lowest environmental impact among suitable devices
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the presence of an integral dose counter.
A spacer should usually be prescribed for use with a metered dose inhaler, particularly in children. See the patient decision aid on asthma inhalers and climate change. [BTS/SIGN 2019, amended BTS/NICE/SIGN 2024]
1.6.6
Give people with asthma information on their inhaler treatments. This should include the medicines they contain, how they work, when they should be taken and the correct technique to use for each device. [BTS/SIGN 2019, amended BTS/NICE/SIGN 2024]
1.6.7
Observe the person using their inhaler device (and spacer if used) to check they can use it properly:
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at every asthma review, either routine or unscheduled
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at every asthma-related consultation
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when there is deterioration in asthma control
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when the inhaler device is changed
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when the person asks for it to be checked or changed.
If the person is assessed as being unable to use a device properly, find an alternative. [NICE 2017, BTS/SIGN 2019, amended BTS/NICE/SIGN 2024]
1.6.8
If possible, prescribe the same type of device to deliver preventer and reliever treatments where more than one inhaler is needed. Consider providing an additional metered dose short-acting beta2 agonist (SABA) inhaler plus spacer for emergency use for children under 12 years who may be unable to activate a dry powder inhaler during an acute asthma attack. [BTS/SIGN 2019, amended BTS/NICE/SIGN 2024]
1.6.9
Encourage people to take their used or expired inhalers to their pharmacy for disposal. [BTS/SIGN 2019]
Digital inhalers
1.6.10
Digital inhalers are not recommended for routine use in people with asthma. [BTS/NICE/SIGN 2024]
1.9 Pharmacological management in children under 5
These recommendations are for children under 5 with newly suspected or confirmed asthma, or with asthma symptoms that are uncontrolled on their current treatment.
See also algorithm E for a summary of the pharmacological management of asthma in children under 5.
1.9.1
Consider an 8 to12 week trial of twice-daily paediatric low-dose inhaled corticosteroid (ICS) as maintenance therapy (with a short-acting beta2 agonist [SABA] for reliever therapy) in children under 5 with suspected asthma and:
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symptoms at presentation that indicate the need for maintenance therapy (for example, interval symptoms in children with another atopic disorder), or
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severe acute episodes of difficulty breathing and wheeze (for example, requiring hospital admission, or needing 2 or more courses of oral corticosteroids). [BTS/NICE/SIGN 2024]
1.9.2
If symptoms do not resolve during the trial period, take the following sequential steps:
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check inhaler technique and adherence
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check whether there is an environmental source of their symptoms (for example mould in the home, cold housing, smokers or indoor air pollution)
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review whether an alternative diagnosis is likely.
If none of these explain the failure to respond to treatment, refer the child to a specialist in asthma care. [BTS/NICE/SIGN 2024]
1.9.3
Consider stopping ICS and SABA treatment after 8 to 12 weeks if symptoms are resolved. Review the symptoms after a further 3 months. [BTS/NICE/SIGN 2024]
1.9.4
If symptoms resolve during the trial period, but then:
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symptoms recur by the 3-month review, or
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the child has an acute episode requiring systemic corticosteroids or hospitalisation, restart regular ICS (begin at a paediatric low dose and titrate up to a paediatric moderate dose if needed) with SABA as needed and consider a further trial without treatment after reviewing the child within 12 months. [BTS/NICE/SIGN 2024]
1.9.5
If suspected asthma is uncontrolled in children under 5 on a paediatric moderate dose of ICS as maintenance therapy (with SABA as needed), consider a leukotriene receptor antagonist (LTRA) in addition to the ICS. Give the LTRA for a trial period of 8 to 12 weeks (unless there are side effects), then stop it if it is ineffective. [BTS/NICE/SIGN 2024]
November 2024: Follow the MHRA safety advice on the risk of neuropsychiatric reactions in people taking montelukast.
1.9.6
If suspected asthma is uncontrolled in children under 5 on a paediatric moderate dose of ICS as maintenance therapy and a trial of an LTRA has been unsuccessful or not tolerated, stop the LTRA and refer the child to a specialist in asthma care for further investigation and management. [BTS/NICE/SIGN 2024]
Terms used in this guideline
This section defines terms that have been used in a particular way for this guideline. For other definitions see the NICE glossary and the Think Local, Act Personal Care and Support Jargon Buster.
AIR therapy
Anti-inflammatory reliever (AIR) therapy is treatment with a reliever inhaler that contains a combination of an inhaled corticosteroid and formoterol. When this is used in response to symptoms without regular maintenance therapy it is called as-needed AIR therapy. In November 2024 the only product licensed for as-needed AIR therapy contained budesonide/formoterol.
Asthma control
Complete control of asthma is defined as no daytime symptoms, no night-time awakening due to asthma, no asthma attacks, no need for rescue medication, no limitations on activity including exercise, normal lung function (in practical terms forced expiratory volume in 1 second [FEV1] and/or peak expiratory flow [PEF] more than 80% predicted or best), and minimal side effects from treatment.
Atopic disorder
Atopic disorders are allergic conditions including allergic rhinitis (hay fever), atopic dermatitis (eczema), allergic asthma and other specific and non-specific allergic conditions such as food allergies.
Bronchial challenge test
A test to measure airway responsiveness (bronchial responsiveness). It is performed by giving small increments of a bronchoconstrictor (most commonly methacholine) and measuring the FEV1 after each dose until it falls by a predetermined amount (usually 20% from baseline).
Bronchial hyperresponsiveness
A measure of how easily bronchospasm can be induced in the airways. It is measured using a bronchial challenge test.
Bronchodilator reversibility
A measure of the ability to reverse obstruction in the airways using medicines that widen the airways (bronchodilators).
Eosinophil count
The number of eosinophils (a type of white blood cell) measured in a blood sample. Their levels are raised in asthma and other allergic diseases, and less commonly with malignant diseases, parasite infections, reactions to some medicines, and a small number of rare diseases.
FeNO test
A test that measures the amount of nitric oxide (NO) present on exhalation, usually expressed in parts per billion.
FEV1
The amount of air that can be forcibly exhaled from the lungs in one second (forced expiratory volume in one second).
Leukotriene receptor antagonist
A type of oral medicine that blocks cysteinyl leukotrienes, used in the treatment of asthma and seasonal allergies. Also known as leukotriene modifiers.
Long-acting beta2 agonist
A long-acting medicine that acts on beta-receptors in the airway to relax airway smooth muscle and relieve symptoms of asthma.
Long-acting muscarinic receptor antagonist
A long-acting medicine that acts on muscarinic receptors in the airway to relax airway smooth muscle and relieve symptoms of asthma.
Maintenance and reliever therapy (MART)
A form of combined ICS plus formoterol treatment in which a single inhaler containing ICS and formoterol is used for daily maintenance therapy and the relief of symptoms as needed. The terms low-dose MART and moderate-dose MART refer to the dosage of the maintenance component of MART. People using MART do not normally need a SABA.
Peak expiratory flow (PEF) variability
PEF is a measure of the maximum speed of expiration, generally expressed in litres per minute. PEF variability is a measure of the extent to which this varies over time and can be expressed numerically as amplitude percentage mean. This is calculated by subtracting the lowest value measured each day from the highest value on the same day, and averaging this over the number of days on which PEF is measured
Skin prick testing
A test that measures the allergic response of an individual to certain specific allergens when a very small amount of the specific allergen is introduced into the skin (usually the inner forearm).
Specialist in asthma care
A healthcare professional with higher training in respiratory medicine and proficiency in the management of asthma. In the context of this guideline, this requires both the relevant expertise and access to the resources that enable delivery of the diagnostic and management pathways described in the recommendations.
Uncontrolled asthma
A term used when asthma is having an impact on a person's lifestyle, or is restricting their normal activities, because of symptoms such as coughing, wheezing, shortness of breath and chest tightness. Uncontrolled asthma can include one or both of:
These can be quantified by questionnaires such as the Asthma Control Questionnaire or Asthma Control test.