Supraventricular tachyarrhythmia 10 mg as single dose IV over 3 min.
Management of abnormal BP during operation Bolus: 10 mg as single dose IV over 1 min. IV drip infusion: Rate of 5-15 mcg/min/kg body wt.
Hypertensive emergency IV drip at the rate of 5-15 mcg/min/kg body wt.