Principles of care

Cautions

Prior to Entonox use, consideration should be given to the following:
  • The high level of oxygen (50%) in Entonox may depress respiration in patients who have chronic obstructive pulmonary disease and are carbon dioxide (CO2) retainers.
  • Entonox should not be used as a replacement for intravenous analgesia or general anaesthesia in procedures requiring increased levels of medical intervention.
  • If Entonox is used as the sole analgesic/sedative agent, BOC's 2016 data sheet recommends that driving or operating complex machinery is not recommended until:
    • the healthcare professional has judged that the patient has returned to normal mental status (Entonox can cause psychotropic effects)
    • the patient feels they are competent to drive after the relevant procedure is completed
    • at least 30 minutes has elapsed after the administration of Entonox has ceased.
  • Additional care is needed when Entonox is administered to a patient who has been given concomitant medication.