Serious Cardiopulmonary Reactions

Serious cardiopulmonary reactions, including fatalities, have occurred uncommonly during or following the injection of ultrasound contrast agents, including sulfur hexafluoride lipid microspheres [see Warnings and Precautions (5.1)]. Most serious reactions occur within 30 minutes of administration [see Warnings and Precautions (5.1)].

• Assess all patients for the presence of any condition that precludes administration [see Contraindications (4)].
• Always have resuscitation equipment and trained personnel readily available [see Warnings and Precautions (5.1)].