Educational use only. Drug cards are AI-assisted study material for NCLEX preparation.
Albuterol (Ventolin, ProAir, Proventil)
Mechanism of action
Selectively stimulates beta-2 adrenergic receptors in bronchial smooth muscle, causing rapid bronchodilation. Onset within 5 minutes, peak 30–60 minutes, duration 4–6 hours. Used for acute asthma exacerbation, exercise-induced bronchospasm, COPD exacerbation, and emergent treatment of hyperkalemia (drives potassium into cells).
Adverse effects
Life-threatening / NCLEX-tested
- Tachyarrhythmias and ventricular ectopy (especially with overuse, hypokalemia, or in cardiac patients)
- Severe hypokalemia (intracellular potassium shift; relevant with continuous nebulization)
- Paradoxical bronchospasm (rare; STOP and use a different agent if it occurs)
- Angina worsening in coronary artery disease
- Severe tremor and muscle cramps with high doses
- Hyperglycemia (mild, transient)
Side effects
Common — what to teach
- Tremor (especially fine hand tremor — very common, often the first noticed)
- Tachycardia, palpitations
- Headache
- Nervousness, anxiety, restlessness
- Throat irritation, cough
- Bad taste
- Mild nausea
Food & drug interactions
Beta blockers blunt or block albuterol's effect — non-selective (propranolol) can cause severe bronchospasm in asthma; cardioselective (metoprolol) safer but still problematic at high doses. MAOIs and TCAs amplify cardiovascular effects. Diuretics compound hypokalemia. Other sympathomimetics compound tachycardia.
Nursing implications
Assessment, monitoring, patient teaching
- Acute asthma: 1–2 puffs (90 mcg/puff MDI) every 4–6 hours PRN, or back-to-back nebs (2.5–5 mg) every 20 minutes × 3 in severe exacerbation; reassess after each treatment with peak flow / clinical exam
- MDI technique: shake well, exhale fully, slow deep inhalation while pressing canister, hold breath 10 seconds, wait 1 minute between puffs. Use a SPACER for children, older adults, or anyone with poor coordination — dramatically improves lung deposition
- ASSESSMENT BEFORE: HR, RR, SpO2, breath sounds, peak flow if available; AFTER: same metrics 5–15 minutes later to gauge response
- OVERUSE WARNING: > 1 SABA canister per month, or any need to use it daily, signals poorly controlled asthma — escalate to a controller (inhaled corticosteroid)
- Counsel that tremor and tachycardia are expected and usually transient; report chest pain or sustained palpitations
- Always carry a rescue inhaler; teach the difference between rescue (albuterol) and controller (ICS, LABA, biologics) — patients commonly confuse them
When to hold / contraindications
- Active sustained tachyarrhythmia or new ventricular ectopy
- Paradoxical bronchospasm — switch agents
- Severe untreated hypokalemia (correct first; albuterol will worsen it)
- Hypersensitivity to albuterol or any inhaler propellant
- Active angina pectoris with hemodynamic instability
Memory anchor
Albuterol = "rescue, not control." Tremor and tachycardia are expected. > 1 canister/month signals poor asthma control — step up the regimen, don't just refill the rescue.
Practice Albuterol questions
Test your recall on real NCLEX-style pharmacology questions — with full rationales and an AI Coach for the parts you miss.