<4yrs: not recommended. ≥4yrs: 2 inh every 4–6 hrs as needed; 1 inh every 4 hrs may suffice. Exercise–induced bronchospasm: 2 inh 15 minutes before exercise.
Avoid excessive use. Sensitivity to sympathomimetics. Discontinue if paradoxical bronchospasm or cardiovascular effects occur. Cardiovascular disease (eg, coronary insufficiency, arrhythmias, hypertension). Diabetes. Hyperthyroidism. Seizure disorders. Reevaluate periodically. Elderly. Labor & delivery. Pregnancy (Cat.C). Nursing mothers: not recommended.
Avoid MAOIs, tricyclics within 14 days (increased cardiovascular effects). Oral sympathomimetics: not recommended. Antagonized by β-blockers. Monitor digoxin. Caution with other drugs that may lower serum potassium (eg, diuretics).
Tremor, nervousness, headache, dizziness, hyperactivity, insomnia, weakness, tachycardia, epistaxis, hypokalemia, throat irritation (inh), paradoxical bronchospasm; immediate hypersensitivity reactions (eg, rash, urticaria, angioedema).
Formerly known under the brand names Proventil (aerosol, soln, nebules), Ventolin (aerosol, soln, syrup).