<p><strong>Adult and&nbsp;Child (&gt;1 month)</strong>: Initially, 300-600 mcg/kg as bolus IV, with subsequent doses of 100-200 mcg/kg by IV every 15-25 min or 5-10 mcg/kg/min by infusion in prolonged procedures. Higher infusion rate may be used in patients undergoing controlled ventilation in intensive care.</p>