Salbutamol (Albuterol)

Short-acting beta-2 adrenergic agonists (SABA)

ATC code: R03AC02 (Salbutamol (Albuterol))

Brand names

Ventolin, ProAir

Mechanism of action

Selective beta-2 adrenergic agonist on bronchial smooth muscle. Relaxes smooth muscle and dilates bronchi via adenylyl cyclase activation and increased cAMP. Onset 5–15 minutes after inhalation, duration 4–6 hours. A reliever, not a controller. Since 2019, SABA monotherapy in asthma is no longer recommended — it is associated with worse control and increased mortality.

Indications

Acute bronchospasm

First line

First-line reliever for acute bronchospasm of any cause (asthma, COPD, allergic airway edema, exercise). Dose via pMDI: 2 puffs of 100 mcg (total 200 mcg), repeatable in 20 minutes. Via nebulizer in severe exacerbation: 2.5–5 mg in 2.5 mL saline, repeat every 20 minutes for up to 3 doses. Onset 5–15 minutes.

Used in children from the first year of life on clinical grounds. Always via spacer, with a face mask for the youngest.

Sources

ICD-10: J98.0 · ICD-11: CA23.2

Chronic obstructive pulmonary disease

First line

2024 recommends salbutamol as a rescue bronchodilator in COPD. Maintenance therapy relies on long-acting bronchodilators (LAMA and/or LABA), while SABA is used on demand for episodes of dyspnea.

Sources

ICD-10: J44 · ICD-11: CA22

Exercise-induced bronchoconstriction

First line

Per ATS 2013 and 2024, salbutamol 200 mcg taken 15 minutes before exercise is first-line prophylaxis for exercise-induced bronchoconstriction in patients without underlying asthma. In asthma patients, daily prophylactic SABA is not needed – optimize controller ICS therapy. Frequent pre-exercise SABA use leads to tachyphylaxis.

Sources

ICD-10: J45.9 · ICD-11: CA23.21

Asthma

Individual decision

Per 2024, the preferred reliever in adults and adolescents from age 12 across all asthma steps is a fixed combination of low-dose ICS + formoterol (e.g., budesonide/formoterol) rather than salbutamol. SABA monotherapy is associated with increased asthma mortality (Cochrane meta-analysis). SABA use more than twice weekly is a marker of poor control. In children under 5, salbutamol remains the first-line reliever, with ICS added as a controller.

As a reliever only. SABA monotherapy is contraindicated in persistent asthma.

Sources

ICD-10: J45 · ICD-11: CA23

Marketing claims without evidence base

The drug is promoted for these uses outside international guidelines. Each entry below is analyzed against AEMPS, FDA, EMA, Cochrane and major RCTs.

Common cold

Not recommended

Salbutamol is not mentioned in international guidelines for viral URI without bronchospasm. A 2014 Cochrane review found no benefit in children with acute bronchitis without wheezing. Use in patients without airflow obstruction produces only tachycardia and tremor with no clinical benefit.

Sources

Cochrane Database of Systematic Reviews: Beta2-agonists for acute cough or a clinical diagnosis of acute bronchitis (2015)

ICD-10: J00 · ICD-11: CA00

Muscle mass gain (bodybuilding self-use)

Not recommended

Bodybuilders take Salbutamol expecting an anabolic beta-2 agonist effect. Controlled human trials do find a weak, sex-dependent anabolic signal: some studies report increased myofibrillar protein synthesis and small lean-mass gain. The effect splits by sex. Women show body recomposition, men show no lean-mass gain, and in neither case does it amount to clinically meaningful muscle gain for bodybuilding. Salbutamol also lowers VO2max and reduces quadriceps strength in women. Its acute effect is limited to anaerobic power, with no gain in maximal strength. No international guideline recommends Salbutamol for muscle gain in healthy people. WADA bans oral Salbutamol, and high doses carry a risk of arrhythmia and sudden death.

Sources

Weight loss

Not recommended

In fitness communities salbutamol is sometimes used as a 'clenbuterol replacement' for thermogenic effects and weight loss. This use is dangerous: tachycardia, tremor, hypokalaemia, and arrhythmias at systemic doses, especially combined with other beta-agonists. International obesity guidelines (, ) do not mention salbutamol. Inhaled delivery has minimal systemic bioavailability, so 'weight loss' use requires oral administration or high doses – doubling the risk.

Sources

Practical notes

Timing and administration

Use as needed for wheeze, cough, or breathlessness. Two pMDI puffs 30 seconds apart. If insufficient, repeat in 20 minutes. With no relief after 6–8 actuations or with need above 4 times daily, seek urgent medical care — this signals a severe exacerbation.

Device compatibility

Via pMDI in children under 5, elderly, and severe exacerbations, use a spacer with face mask — lower-airway delivery increases 2–4 fold. Via nebulizer in severe exacerbations, use a jet (compressor) nebulizer with 2.5–5 mg in 2.5 mL saline. Ultrasonic and mesh nebulizers also work for salbutamol solutions, but jet nebulizers are the hospital standard.

Common myths

Myth: 'salbutamol can be inhaled daily for prevention'. Fact: daily SABA without ICS in asthma raises mortality. Controllers (ICS or ICS + formoterol) are the foundation; SABA is for symptoms only.

Myth: 'salbutamol is addictive'. Fact: there is no physiological dependence. High-frequency use signals poor control of the underlying disease — controller therapy needs optimization.

Myth: 'salbutamol is a doping agent in sport'. Fact: WADA permits inhaled doses up to 1600 mcg daily with a medical indication. Oral and injectable use is prohibited without a TUE.

Check interaction with another drug

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Official sources

Direct links to regulator labels. Open in a new tab.

AEMPS / CIMA

Spanish Medicines Information Centre (CIMA)

GRLS

Russian State Register of Medicines

Safety

Contraindications

Hypersensitivity
Uncorrected severe tachyarrhythmias

Serious adverse effects

Paradoxical bronchospasm (rare, requires immediate discontinuation)
Severe ventricular arrhythmias (rare, in overdose)
Lactic acidosis with high nebulized doses in severe asthma

Common adverse effects

Hand tremor
Tachycardia, palpitations
Headache
Hypokalemia (with high nebulized doses)
Throat irritation, cough after inhalation

PregnancyFDA C

FDA categories were retired in 2015. Inhaled salbutamol is compatible with pregnancy for asthma symptom relief — the risk of untreated asthma to the fetus exceeds the theoretical drug risk.

Breastfeeding

Hale L1 · Compatible

Compatible with breastfeeding. Systemic bioavailability after inhalation is low, with minimal transfer to milk.

Maternal half-life: 4 h
Maternal peak time: 2.5 h

Calculate RID Safe feeding window Full profile on NIH LactMed ↗

Reference information, not a clinical decision. Discuss feeding pauses or changes with your physician or an IBCLC.

Frequently asked

What is Salbutamol (Albuterol) used for?

Salbutamol (Albuterol) is evaluated for the following indications with varying evidence strength: Chronic obstructive pulmonary disease (evidence tier A), Exercise-induced bronchoconstriction (evidence tier A), Acute bronchospasm (evidence tier A). See the full indication matrix with dosing and citations above on this page.

What are the side effects of Salbutamol (Albuterol)?

Common side effects of Salbutamol (Albuterol) (≥ 1 in 100): Hand tremor, Tachycardia, palpitations, Headache, Hypokalemia (with high nebulized doses), Throat irritation, cough after inhalation. See the Safety section for uncommon and serious reactions.

Is Salbutamol (Albuterol) safe during pregnancy?

FDA category C. FDA categories were retired in 2015. Inhaled salbutamol is compatible with pregnancy for asthma symptom relief — the risk of untreated asthma to the fetus exceeds the theoretical drug risk.

Is Salbutamol (Albuterol) compatible with breastfeeding?

Compatible with breastfeeding. Systemic bioavailability after inhalation is low, with minimal transfer to milk.

Who should not take Salbutamol (Albuterol)?

Salbutamol (Albuterol) is contraindicated in: Hypersensitivity; Uncorrected severe tachyarrhythmias. Full list in the Safety section.

salbutamol can be inhaled daily for prevention

daily SABA without ICS in asthma raises mortality. Controllers (ICS or ICS + formoterol) are the foundation; SABA is for symptoms only.

salbutamol is addictive

there is no physiological dependence. High-frequency use signals poor control of the underlying disease — controller therapy needs optimization.

salbutamol is a doping agent in sport

WADA permits inhaled doses up to 1600 mcg daily with a medical indication. Oral and injectable use is prohibited without a TUE.

Salbutamol (Albuterol)

AEMPS

Short-acting beta-2 adrenergic agonists (SABA)

ATC code: R03AC02 (Salbutamol (Albuterol))

Brand names

Ventolin, ProAir

Mechanism of action

Indications

Acute bronchospasm

First line

Used in children from the first year of life on clinical grounds. Always via spacer, with a face mask for the youngest.

Sources

ICD-10: J98.0 · ICD-11: CA23.2

Chronic obstructive pulmonary disease

First line

2024 recommends salbutamol as a rescue bronchodilator in COPD. Maintenance therapy relies on long-acting bronchodilators (LAMA and/or LABA), while SABA is used on demand for episodes of dyspnea.

Sources

ICD-10: J44 · ICD-11: CA22

Exercise-induced bronchoconstriction

First line

Sources

ICD-10: J45.9 · ICD-11: CA23.21

Asthma

Individual decision

As a reliever only. SABA monotherapy is contraindicated in persistent asthma.

Sources

ICD-10: J45 · ICD-11: CA23

Marketing claims without evidence base

The drug is promoted for these uses outside international guidelines. Each entry below is analyzed against AEMPS, FDA, EMA, Cochrane and major RCTs.

Common cold

Not recommended

Sources

Cochrane Database of Systematic Reviews: Beta2-agonists for acute cough or a clinical diagnosis of acute bronchitis (2015)

ICD-10: J00 · ICD-11: CA00

Muscle mass gain (bodybuilding self-use)

Not recommended

Sources

Weight loss

Not recommended

Sources

Practical notes

Timing and administration

Device compatibility

Common myths

Check interaction with another drug

Opens the checker prefilled with this drug. Pick the second one from your regimen.

Open checker

Official sources

Direct links to regulator labels. Open in a new tab.

AEMPS / CIMA

Spanish Medicines Information Centre (CIMA)

GRLS

Russian State Register of Medicines

Safety

Contraindications

Hypersensitivity
Uncorrected severe tachyarrhythmias

Serious adverse effects

Paradoxical bronchospasm (rare, requires immediate discontinuation)
Severe ventricular arrhythmias (rare, in overdose)
Lactic acidosis with high nebulized doses in severe asthma

Common adverse effects

Hand tremor
Tachycardia, palpitations
Headache
Hypokalemia (with high nebulized doses)
Throat irritation, cough after inhalation

PregnancyFDA C

FDA categories were retired in 2015. Inhaled salbutamol is compatible with pregnancy for asthma symptom relief — the risk of untreated asthma to the fetus exceeds the theoretical drug risk.

Breastfeeding

Hale L1 · Compatible

Compatible with breastfeeding. Systemic bioavailability after inhalation is low, with minimal transfer to milk.

Maternal half-life: 4 h
Maternal peak time: 2.5 h

Calculate RID Safe feeding window Full profile on NIH LactMed ↗

Reference information, not a clinical decision. Discuss feeding pauses or changes with your physician or an IBCLC.

Frequently asked

What is Salbutamol (Albuterol) used for?

What are the side effects of Salbutamol (Albuterol)?

Is Salbutamol (Albuterol) safe during pregnancy?

Is Salbutamol (Albuterol) compatible with breastfeeding?

Compatible with breastfeeding. Systemic bioavailability after inhalation is low, with minimal transfer to milk.

Who should not take Salbutamol (Albuterol)?

Salbutamol (Albuterol) is contraindicated in: Hypersensitivity; Uncorrected severe tachyarrhythmias. Full list in the Safety section.

salbutamol can be inhaled daily for prevention

daily SABA without ICS in asthma raises mortality. Controllers (ICS or ICS + formoterol) are the foundation; SABA is for symptoms only.

salbutamol is addictive

there is no physiological dependence. High-frequency use signals poor control of the underlying disease — controller therapy needs optimization.

salbutamol is a doping agent in sport

WADA permits inhaled doses up to 1600 mcg daily with a medical indication. Oral and injectable use is prohibited without a TUE.