For intratracheal use only. Frequently monitor systemic O
2 & CO
2 w/ arterial or transcutaneous measurement. Transient episodes of bradycardia & decreased O
2 saturation; discontinue dosing procedure & initiate appropriate measures to alleviate the condition, resume once stabilized. Rales & moist breath sounds can occur transiently after administration. Increased risk of post-treatment nosocomial sepsis. Infants <600 g birthwt.