<4yrs: not established. ≥4yrs: 2 inh every 4–6hrs as needed; 1 inh every 4hrs may suffice. Exercise-induced bronchospasm: 2 inh 15–30 minutes before exercise.
Avoid excessive use. Sensitivity to sympathomimetics. Discontinue if paradoxical bronchospasm, immediate hypersensitivity reactions, 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).
Throat irritation, viral respiratory infections, upper respiratory inflammation, cough, musculoskeletal pain; hypokalemia, paradoxical bronchospasm, cardiovascular effects, hypersensitivity reactions (eg, rash, urticaria, angioedema).
Inhalation aerosol (w. dose counter)—8g (60 inh), 18g (200 inh)