>10%
Transient injection site pain (30-80%),Skeletal muscle movements, mainly myoclonic (32%),Opsoclonus (20%),Adrenal suppression
1-10%
Hiccups
<1%
Apnea (duration: 5-90 seconds),Arrhythmias,Hyperventilation,HTN,Hypotension,Hypoventilation,Laryngospasm,Nausea/vomiting,Oxygen desaturation,Snoring (may be associated with partial upper airway obstruction)