“…[70][71][72][73][74][75][76][77][78][79] RCTs comparing naloxone 80,81 or naltrexone [82][83][84] with placebo are equivocal regarding preprocedure prophylaxis for respiratory depression, hypoxemia, sedation, or somnolence (Category A2-E evidence). [70][71][72][73][74][75][76][77][78][79] RCTs comparing naloxone 80,81 or naltrexone [82][83][84] with placebo are equivocal regarding preprocedure prophylaxis for respiratory depression, hypoxemia, sedation, or somnolence (Category A2-E evidence).…”