Companion Animals

Anaphylaxis in Dogs: Welfare and Emergency Management

Recognising and treating acute allergic reactions to prevent life-threatening welfare collapse.

Key Facts

Anaphylaxis in dogs is most commonly triggered by insect stings and vaccines
Causes facial swelling, vomiting, collapse, and respiratory distress within minutes
Adrenaline (epinephrine) is the life-saving treatment — must be administered rapidly
Dogs with previous anaphylaxis reactions should carry an emergency adrenaline kit

Welfare Considerations

Anaphylaxis causes acute and extreme welfare emergency — cardiovascular collapse and respiratory failure occur within minutes without treatment. Welfare management requires immediate recognition of signs, prompt adrenaline administration, and emergency veterinary care. Dogs known to be at risk should have an action plan and owner-administered adrenaline available. Recovery is typically rapid with prompt treatment.

What You Can Do

Know the signs of anaphylaxis — facial swelling, vomiting, and sudden collapse after a sting or vaccine
Seek emergency veterinary care immediately — anaphylaxis is rapidly fatal without treatment
Ask your vet about carrying an emergency adrenaline kit for dogs with previous anaphylaxis history