A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9

At a Glance

Generic/Biosimilar name: Albuterol sulfate.
Active ingredient: Albuterol Sulfate.
Available as a prescription only.
Administration route: Respiratory (Inhalation).
Inhaled albuterol sulfate is FDA‑approved for the treatment and prevention of bronchospasm in people with reversible obstructive airway disease (such as asthma) and for prevention of exercise‑induced bronchospasm, in adults and in children typically 2–4 years and older depending on the specific product.
Typical dosing is 1–2 inhalations (90 mcg each) by mouth every 4–6 hours as needed for wheeze or shortness of breath, with lower, device‑specific or weight‑based doses in children and a usual maximum of about 8–12 puffs per day.

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An image representing RESPIRATORY (INHALATION) administration route of this drug.

How It Works

  • Targets airway muscles: Albuterol is a short‑acting beta‑2 agonist that relaxes the smooth muscle surrounding the airways.
  • Opens breathing tubes quickly: This relaxation widens (dilates) the airways so air can move in and out more easily, easing wheeze and shortness of breath within minutes.
  • Short‑term “rescue” effect: Its effect starts within about 5 minutes, peaks in 30–60 minutes, and usually lasts 3–6 hours, so it is used for quick relief rather than long‑term control.
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Treatment and Efficacy

Approved indications: Inhaled albuterol sulfate is approved to treat and prevent bronchospasm in patients with reversible obstructive airway disease (such as asthma and some forms of chronic obstructive or reactive airway disease) and to prevent exercise‑induced bronchospasm in appropriate age groups.

Common off‑label uses: Clinicians may use high‑dose nebulized albuterol as part of emergency treatment for life‑threatening asthma and occasionally as adjunctive therapy for hyperkalemia or for wheezing in conditions like bronchiolitis or COPD exacerbations, although evidence quality and benefit vary by condition and guidelines are more cautious for these off‑label situations.

Efficacy expectations: Most people feel easier breathing, less chest tightness, and reduced wheeze within about 5 minutes of inhalation, with peak effect by 30–60 minutes and relief lasting around 3–6 hours.

Clinical outcomes: When used correctly for asthma or exercise‑induced bronchospasm, albuterol typically improves airflow measurements (like peak flow or FEV1), reduces symptoms, and helps prevent exercise‑related attacks, but frequent need for rescue inhalations signals poorly controlled disease and the need to adjust controller therapy.

Comparison with similar drugs: Albuterol’s bronchodilator effect and onset are similar to other short‑acting beta agonists (SABAs) such as levalbuterol, while long‑acting beta agonists are reserved for maintenance control and not for rapid symptom relief.

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Dosage and Administration

Typical adult dosing (asthma or bronchospasm): Common dosing is 1–2 puffs (90 mcg each) from a metered‑dose inhaler every 4–6 hours as needed, or 2.5 mg of nebulized solution every 4–6 hours as needed, not usually exceeding about 8–12 puffs or 4 neb treatments per day unless directed by a clinician.

Typical pediatric dosing: For children 4 years and older using an inhaler, dosing is often 1–2 puffs every 4–6 hours as needed; for children about 2–12 years using nebulizer solution, typical doses range from 0.63 mg to 2.5 mg per treatment every 4–6 hours as advised by the prescriber, using a tight‑fitting mask or mouthpiece.

Exercise‑induced bronchospasm: A usual regimen is 2 inhalations 5–20 minutes before exercise; additional routine doses are not usually needed during the next several hours unless symptoms recur.

How to take the medicine (inhaler): Shake the inhaler well, exhale fully, place the mouthpiece in the mouth, start a slow deep breath while pressing down on the canister once, then continue to inhale deeply and hold the breath for about 10 seconds before exhaling; wait about 30 seconds to 1 minute between puffs if more than one is prescribed, and use a spacer if recommended.

How to take the medicine (nebulizer): Place the prescribed dose of solution into the nebulizer cup, attach the mask or mouthpiece, and breathe calmly and deeply through the device until the mist stops (usually 5–15 minutes), following cleaning instructions after each use.

Special dosing instructions: Do not exceed the prescribed maximum daily dose; frequent need (for example, use on more than 2 days per week for asthma symptoms, not counting pre‑exercise doses) should prompt medical review, as it may indicate poor disease control.

Missed dose guidance: Because albuterol is generally taken as needed, missing a scheduled preventive dose (such as before exercise) usually means taking it when remembered if still needed; do not double up doses to “catch up.”

Overdose: Taking too much albuterol can cause severe tremor, very fast or irregular heartbeat, chest pain, high or low blood pressure, nervousness, or low potassium; in suspected overdose, seek emergency care or contact poison control immediately.

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Safety and Side Effects

Common side effects: Frequently reported effects include tremor or shakiness, nervousness, headache, throat irritation, cough, and a feeling of a fast or pounding heartbeat; these usually start soon after dosing, are mild to moderate, and wear off within a few hours.

Less common but important effects: Some people experience muscle cramps, mild increases in blood pressure, or transient increases in blood sugar, especially at higher or repeated doses.

Serious or rare adverse effects: Seek urgent care for symptoms such as worsening shortness of breath right after using the inhaler (possible paradoxical bronchospasm), chest pain, severe or irregular heartbeat, severe dizziness or fainting, signs of a severe allergic reaction (rash, swelling of face or throat, trouble breathing), or signs of very low potassium (muscle weakness, palpitations).

Warnings and precautions: Use with caution in people with heart disease, history of arrhythmias, high blood pressure, hyperthyroidism, seizures, diabetes, or severe hypokalemia, and in those taking other stimulant medications.

Pregnancy and breastfeeding: Albuterol has been widely used in pregnancy and breastfeeding when needed to control asthma; available data do not show major safety signals, and maintaining good asthma control is important for parent and baby, but dosing should be minimized to the lowest effective amount under medical guidance.

Age considerations: Inhalers require proper technique and are generally labeled for children 4 years and older, while nebulized solutions can be used in younger children with appropriate equipment and supervision; very young infants need close monitoring by a clinician.

Relative safety compared with alternatives: Among short‑acting bronchodilators, albuterol is well established and generally well tolerated; most safety concerns arise from excessive or very frequent use rather than from occasional, labeled use.

Reporting side effects and safety updates: Patients and caregivers can report side effects to the FDA MedWatch program (online or by phone) or through their pharmacist or clinician, and can check the FDA and manufacturer websites for the latest safety communications and product updates.

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Interactions and Precautions

Prescription and OTC drug interactions: Other inhaled or oral sympathomimetics (such as additional rescue inhalers) can increase heart and blood pressure side effects when used together; nonselective beta‑blockers (such as propranolol or timolol eye drops) can blunt albuterol’s effect and may provoke bronchospasm in people with asthma.

Heart and rhythm medications: Diuretics like furosemide or hydrochlorothiazide may enhance albuterol‑related potassium loss, and digoxin levels can be modestly lowered by high‑dose beta‑agonists; people on these medicines may need closer monitoring.

Antidepressants and other stimulants: Monoamine oxidase inhibitors, tricyclic antidepressants, and other stimulants (for example, ADHD medicines or decongestants) can enhance cardiovascular effects such as rapid heart rate and high blood pressure when combined with albuterol; prescribers may adjust doses or recommend alternatives.

Supplements, foods, and alcohol: Large amounts of caffeine or other stimulant supplements (like some energy products) may add to jitteriness and palpitations; moderate alcohol intake does not have a major direct interaction but can worsen asthma in some people.

Medical conditions requiring caution: Use carefully and under supervision in patients with coronary artery disease, heart failure, arrhythmias, hypertension, hyperthyroidism, diabetes, seizure disorders, or a history of severe hypokalemia.

Diagnostic and surgical procedures: Inform anesthesia and procedure teams about regular albuterol use; certain inhaled anesthetics in combination with high‑dose beta‑agonists may increase arrhythmia risk, so timing and dosing may be adjusted.

Monitoring needs: For routine outpatient use, clinicians often monitor symptom frequency, inhaler use, and lung function (peak flow or spirometry); in higher‑dose or hospitalized settings, heart rate, blood pressure, electrolytes (especially potassium), and sometimes ECGs are checked, particularly in those with heart disease or on interacting medications.

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Disposal Guidance

Storage: Store inhalers and nebulizer solution at room temperature, away from excessive heat, open flame, and direct sunlight; do not freeze the solution and do not puncture or incinerate inhaler canisters.

Handling inhalers: Keep the mouthpiece clean and dry with a dry tissue or cloth (avoid washing the metal canister in water), and always replace the cap after use.

Disposal: When the dose counter reads zero or the labeled number of doses has been used, discard the inhaler; do not throw pressurized canisters into a fire or household incinerator—follow local instructions for aerosol can disposal or return through pharmacy medication take‑back programs.

Safety around children and pets: Store out of reach of children and pets, and do not share inhalers or nebulizer vials with others to avoid infection spread and dosing errors.

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Common Questions and Answers

Q: Is albuterol a rescue inhaler or a daily controller medicine?
A: Albuterol is a short‑acting “rescue” medicine used for quick relief of wheeze or shortness of breath and before exercise in some people; it is not a controller medicine and does not replace daily inhaled steroids or other long‑term asthma therapies.

Q: How fast does albuterol work and how long does the effect last?
A: Most people start to feel relief within about 5 minutes of inhalation, breathing is usually much better within 15–30 minutes, and the effect typically lasts around 3–6 hours.

Q: How often is it safe to use my albuterol inhaler?
A: Many treatment plans allow 1–2 puffs every 4–6 hours as needed, but needing it more than about two days per week (other than before exercise) or using it many times a day is a sign to contact your clinician, as it may mean your asthma is not well controlled.

Q: What should I do if albuterol does not relieve my breathing symptoms?
A: If you have used your prescribed number of puffs or a full nebulizer treatment and still feel very short of breath, are having trouble speaking, or your symptoms are rapidly worsening, seek urgent or emergency medical care rather than continuing to take repeated extra doses.

Q: Is albuterol safe during pregnancy and breastfeeding?
A: Albuterol has been used for many years in pregnancy and breastfeeding when needed to control asthma, and maintaining good asthma control is important for both parent and baby, so clinicians generally continue or start it when the expected benefits outweigh any small potential risks.

Q: What is the difference between albuterol inhalers and nebulizer treatments?
A: Both deliver the same type of medicine to the lungs, but inhalers give a quick measured puff that requires good technique (often with a spacer), while nebulizers turn the liquid into a mist over several minutes and are often used for young children or during severe attacks when careful, deep breathing is harder.

Content last updated on December 2, 2025. Always consult a qualified health professional before making any treatment decisions or taking any medications. Review our Terms of Service for full details.