About antivenom redback spider
Redback spider antivenom
Used for
- Treats significant pain and other symptoms from redback spider bites.
Usual adult dose
Usually 500 IU (one vial) by intramuscular injection; a clinician may repeat it if needed.
Usual dose in children
Usually 500 IU by intramuscular injection; a clinician may repeat it if needed.
Common side effects
- Allergic reactions, including anaphylaxis
- Serum sickness, sometimes delayed
- Injection-site pain or swelling
Important warnings
- Must be given by a healthcare professional where severe allergic reactions can be treated.
- Allergy to horse-derived products increases reaction risk.
- Bite symptoms can persist despite treatment; observation and pain relief may still be needed.
Pregnancy
May be used when clinically necessary; untreated serious envenomation also carries risk.
Breastfeeding
May be used when clinically necessary; ask a clinician about individual circumstances.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.