15 – 35mL vial
Keep Refrigerated


1000 units Sea Snake Antivenom


Management of sea snake envenomation. Sea snake envenomation results in non-specific systemic symptoms, myotoxicity and neurotoxicity.

Medication box with the name Sea Snake Antivenom.

Consultation with a clinical toxicologist is recommended through local toxicology service or Poisons Information Centre 13 11 26.


1 vial IV over 15min following a 1:10 dilution with sodium chloride 0.9%. Dilution can be 1:5 in young children or patients on fluid restriction.

Stocking recommendations

Tertiary centre Regional centre Rural centre Remote centre
1 vials 1 vials 0-1 vials 0 vials


Bites by sea snakes are extremely rare in Australia. The current stocking recommendation reflects a pragmatic approach to antivenom stocking.


  • Hypersensitivity reactions may occur. Antivenom should be administered in a critical care area in anticipation of potential anaphylaxis.
  • Premedication with steroids/adrenaline is not recommended.
  • If a hypersensitivity reaction occurs, pause the infusion and treat along standard lines. Recommence the infusion once the reaction settles at a slower rate.
  • If the hypersensitivity reaction is severe, discuss the case with a clinical toxicologist.

Serum sickness may occur 4 to 14 days following the administration of antivenom. Symptoms include fever, rash, joint and muscle pain, headache, nausea and vomiting. Patients should be informed of the symptoms and present to their local doctor should they occur.


Fact sheet developed by Queensland Poisons Information Centre.

This fact sheet is about the use of these antidotes in Australia, and may not apply to other countries. Children’s Health Queensland Hospital and Health Service cannot be held responsible for the accuracy of information, omissions of information, or any actions that may be taken as a consequence of reading this fact sheet.

Last updated: July 2023