Methoxyflurane

Question 1

Methoxy Intro

Answer 1

A halogenated ether that produces powerful modification of the awareness of pain with an associated light headed sensation.
- 6-8 breaths/ 1-2 min onset with maximum level after 2-4 minutes.

Question 2

Methoxy Indications

Answer 2

Pain

Question 3

4 Methoxy Contraindications

Answer 3

• Patients who are unable to understand or co-operate.
• Patients with severe renal impairment.
• Patients with head injury and altered consciousness that prevents co-operation with its use.
• Hypersensitivity e.g. malignant hyperthermia

Question 4

Methoxy Precautions / Notes

Answer 4

• Use PenthroxTM inhaler with charcoal filter attached
• Where administration in transit is necessary, the rear extractor fan must be used and the rear facing seat should remain vacant
• Instruct the patient to breathe in through their mouth and out through their mouth via the inhaler. For maximum effect cover the air dilutor hole.
• Initial breath is strong and may cause the patient to cough, so advise to take gently
• Watch for drowsiness
• If oxygen is required deliver separately
• Place in a sealed plastic bag when not in use

Question 5

5 Methoxy Special Considerations (Side Effects)

Answer 5

Lightheaded
Dizziness
Drowsy
Nausea
Malignant hyperthermia

Question 6

Methoxy Presentation

Answer 6

3ml ampoule for inhalation via Penthrox inhaler