Cardiac arrhythmias especially 3rd-degree AV block and tachyarrhythmias, idiopathic subvalvular aortic stenosis, hypertrophic obstructive cardiomyopathy, severe heart and occlusive vascular disease. Known or suspected prolongation of the QTc interval either congenital or drug induced (QTc >0.44 sec). Thyrotoxicosis, DM, phaeochromocytoma and untreated hypokalaemia. Severe asthma; monitor serum K levels in unstable asthma. Monitor blood glucose closely in diabetics. Do not administer at least 12 hour prior to anesthetic. Active or quiescent pulmonary TB, fungal and viral infections in the airways. Avoid abrupt withdrawal. Discontinue use if paradoxical bronchospasm occurs. Transfer to Foster therapy of patients with impaired adrenal function from previous systemic steroid therapy. Children and adolescents <18 year. Pregnancy and lactation.
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