Respiratory Depression
Apnea
Hypotension
syncope
bradycardia
urinary retention
Seizures
anaphylaxis
Nausea
Rash
Headache
Fatigue
xerostomia
constipation
Tremor
urinary retention
Meperidine
Fentanyl
Ketamine
Codeine
Ketofol
Naloxone
Etomidate
Propofol