Induction and maintenance of anaesthesia

Specialist training is required for all general anaesthesia procedures. Drugs for general anaesthesia should only be administered by or under the direct supervision of personnel experienced in their use and only in locations where resuscitation equipment is available. Personnel should have adequate training in anaesthesia and airway management.

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Maintenance of anaesthesia with intravenous anaesthetics
Propofol
Propofol 200mg/20ml emulsion for injection ampoules

Dose as per specialist.

Propofol 500mg/50ml emulsion for infusion vials

Dose as per specialist.

Propofol 1g/50ml emulsion for infusion vials

Dose as per specialist.

Prescribing Notes:

  • Propofol is contra-indicated in patients who are allergic to eggs, nuts or soya and should be used with caution in patients with epilepsy due to increased risk of convulsions.
  • Propofol is used in sub-anaesthetic doses by infusion for sedation.

History Notes

27/10/2022

East Region Formulary content agreed.

Maintenance of sedation in ICU

Profopol, clonidine or dexmedetomidine alone, or in combination.

Propofol
Propofol 200mg/20ml emulsion for injection ampoules

Dose as per specialist.

Propofol 500mg/50ml emulsion for infusion vials

Dose as per specialist.

Propofol 1g/50ml emulsion for infusion vials

Dose as per specialist.

Propofol 1g/100ml emulsion for infusion vials

Dose as per specialist.

Clonidine
Clonidine 150micrograms/1ml solution for injection ampoules

Dose as per specialist.

Dexmedetomidine
Dexdor 400micrograms/4ml concentrate for solution for infusion vials

Dose as per specialist.

Dexmedetomidine 400micrograms/100ml infusion bags

Dose as per specialist.

Profopol or midazolam alone, or in combination.

Propofol
Propofol 200mg/20ml emulsion for injection ampoules

Dose as per specialist.

Propofol 500mg/50ml emulsion for infusion vials

Dose as per specialist.

Propofol 1g/50ml emulsion for infusion vials

Dose as per specialist.

Propofol 1g/100ml emulsion for infusion vials

Dose as per specialist.

Midazolam
Midazolam 50mg/50ml solution for infusion vials

Dose as per specialist.

Prescribing Notes:

  • Propofol is contra-indicated in patients who are allergic to eggs, nuts or soya and should be used with caution in patients with epilepsy due to increased risk of convulsions.
  • Propofol is used in sub-anaesthetic doses by infusion for sedation.

History Notes

27/10/2022

East Region Formulary content agreed.

Induction and maintenance of sedation with inhaled anaesthetics

Inhaled anaesthetics can be used with or without nitrous oxide in oxygen.

Sevoflurane
Sevoflurane 100% inhalation vapour liquid

Dose as per specialist.

Inhaled anaesthetics can be used with or without nitrous oxide in oxygen.

Isoflurane
Isoflurane 100% inhalation vapour liquid

Dose as per specialist.

Prescribing Notes:

  • Sevoflurane is associated with fewer adverse induction effects and can be used for rapid inhalational induction in place of intravenous agents.
  • All volatile anaesthetic agents (e.g. isoflurane, sevoflurane) can trigger malignant hyperthermia; nitrous oxide does not trigger malignant hyperthermia.
  • Adequate scavenging or external venting should be used.
  • Use of absorption breathing systems can permit use of low fresh gas flow techniques which can result in significant economies with these agents.

History Notes

27/10/2022

East Region Formulary content agreed.

Analgesia using inhaled anaesthetics

Nitrous oxide through anaesthetic machine with oxygen, or as Entonox or Equanox (nitrous oxide + oxygen).

Methoxyflurane
Methoxyflurane 99.9% inhalation vapour liquid 3ml bottles with device

Seek expert advice and see BNF.

Prescribing Notes:

  • Nitrous oxide (maximum dose, 70% in oxygen) is used for sedation or pain relief as:
    • Entonox or Equanox (containing 50% nitrous oxide and 50% oxygen) fixed dose.
    • Relative analgesia (nitrous oxide 0-70% in oxygen) variable dose.
  • Entonox (or Equanox) and RA (Relative Analgesia) should be used in well ventilated areas.
  • Please see local neurosurgery protocols for the use of methoxyflurane (Penthrox) for short term procedures.
  • Please see local Emergency department protocols for the use of methoxyflurane (Penthrox) for Emergency relief of moderate to severe pain in conscious adult patients with trauma and associated pain (usually involving limb injury, and subsequent procedures including splinting, manipulation, or reduction).

History Notes

12/06/2024

Methoxyflurane, Penthrox added for Specialist Use only in the Emergency department, ERFC Dec 23.

27/10/2022

East Region Formulary content agreed.

Antimuscarinic adjuvants in anaesthesia
Atropine
Atropine 600micrograms/1ml solution for injection ampoules

Dose as per specialist.

Atropine 1mg/5ml solution for injection pre-filled syringes

Dose as per specialist.

Glycopyrronium bromide
Glycopyrronium bromide 600micrograms/3ml solution for injection ampoules

Dose as per specialist.

History Notes

27/10/2022

East Region Formulary content agreed.

Opioid adjuvants in anaesthesia
Alfentanil
Alfentanil 1mg/2ml solution for injection ampoules

Dose as per specialist.

Alfentanil 25mg/50ml solution for injection vials

Dose as per specialist.

Fentanyl
Fentanyl 100micrograms/2ml solution for injection ampoules

Dose as per specialist.

Fentanyl 500micrograms/10ml solution for injection ampoules

Dose as per specialist.

Morphine 50mg/50ml and 100mg/50ml should be used in PCA only.

Morphine
Morphine sulfate 10mg/1ml solution for injection ampoules

Dose as per specialist.
Morphine 50mg/50ml and 100mg/50ml should be used in PCA only.

Morphine sulfate 50mg/50ml solution for infusion vials

Dose as per specialist.
Morphine 50mg/50ml and 100mg/50ml should be used in PCA only.

Morphine sulfate 100mg/50ml solution for infusion vials

Dose as per specialist.
Morphine 50mg/50ml and 100mg/50ml should be used in PCA only.

Oxycodone
Oxycodone 10mg/1ml solution for injection ampoules

Dose as per specialist.

Remifentanil 5mg powder for solution for injection vials should be used in ICU only.

Remifentanil
Remifentanil 1mg powder for solution for injection vials

Dose as per specialist.
Remifentanil 5mg powder for solution for injection vials should be used in ICU only.

Remifentanil 2mg powder for solution for injection vials

Dose as per specialist.
Remifentanil 5mg powder for solution for injection vials should be used in ICU only.

Remifentanil 5mg powder for solution for injection vials

Dose as per specialist.
Remifentanil 5mg powder for solution for injection vials should be used in ICU only.

Tramadol
Tramadol 100mg/2ml solution for injection ampoules

Dose as per specialist.

History Notes

27/10/2022

East Region Formulary content agreed.

Induction of anaesthesia with intravenous anaesthetics
Propofol
Propofol 200mg/20ml emulsion for injection ampoules

Dose as per specialist.

Propofol 1g/50ml emulsion for infusion vials

Dose as per specialist.

Etomidate
Etomidate 20mg/10ml emulsion for injection ampoules

Dose as per specialist.

Thiopental
Thiopental 500mg powder for solution for injection vials

Dose as per specialist.

Thiopental 500mg/20ml solution for injection pre-filled syringes

Dose as per specialist.

Ketamine
Ketamine 200mg/20ml solution for injection vials

Dose as per specialist.

Ketamine 500mg/10ml solution for injection vials

Dose as per specialist.

Prescribing Notes:

  • Propofol is contra-indicated in patients who are allergic to eggs, nuts or soya and should be used with caution in patients with epilepsy due to increased risk of convulsions.
  • Propofol is used in sub-anaesthetic doses by infusion for sedation.
  • Thiopental is used in patients suffering from epilepsy or those who are allergic to propofol. It is contra-indicated in patients allergic to barbiturates or suffering porphyria.

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History Notes

27/10/2022

East Region Formulary content agreed.