Immediate hypersensitivity reactions. Acute bronchospasm. Stop treatment if paradoxical bronchospasm occurs. Patients w/ narrow-angle glaucoma, prostatic hyperplasia, or bladder-neck obstruction, particularly if receiving an anticholinergic by another route; underlying severe heart disease including ischemic heart disease, arrhythmia or severe heart failure; DM, recent MI, severe organic heart or vascular disorders, hyperthyroidism, pheochromocytoma. Ocular effects; not to be sprayed into the eyes. Hypokalemia. Bronchial obstruction deterioration in prolonged use. Reevaluation of treatment regimen if patient needs more doses than usual. Concomitant administration w/ other sympathomimetic bronchodilators. Transient ventricular premature contractions, atrial arrhythmia, inverted T waves, junctional rhythm, & prolongation of QT interval, arrhythmias that may result from hypoxia or hypokalemia; increased blood glucose conc possibly due to glycogenolysis; & decreased serum K conc possibly through intracellular shunting w/ frequent use of higher doses or an overdose. May affect ability to drive & use machines. Pregnancy (especially during 1st trimester) & lactation. Childn <6 yr.
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