UNCONTROLLED WHEN PRINTED
Introduction
- Depolarising neuromuscular blocking agent
- A short acting muscle relaxant
Indications
- Complete muscle relaxation to facilitate endotracheal intubation.
Contraindications
- Known hypersensitivity to Suxamethonium
- Upper airway obstruction
- Severe respiratory distress
- Known history of Suxamethonium apnoea
- ECG signs of hyperkalaemia in conditions such as muscle necrosis and renal failure
- Organophosphate poisoning
- Known history of malignant hyperthermia
- Avoid in chronic neuromuscular disease (if known)
Precautions / Notes
- Sedation is required prior to use
- A second dose of Suxamethonium usually causes profound bradycardia
- Complete muscle relaxation occurs within 30-60 seconds and persists for about 2-3 minutes.
- Keep refrigerated at 2-8°C
Management
Critical Care Paramedic only
Conduct ASMA consult if Suxamethonium contraindicated or as required
Adult IV/IO:
- 1-2mg/kg
- Repeat dose if indicated
Paediatric IV/IO:
- 2mg/kg
Special Considerations
- Muscular fasciculations
- Increased intraocular pressure
- Increased intragastric pressure
- Elevated serum potassium levels
- Bradycardia
References
References
Presentation
100mg in 2ml ampoule
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