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Anaphylaxis

Recognition and acute management of anaphylaxis.

Reviewed by Dr Kola Tytler MBBS CertHE MBA MSt MRCGP (General Practitioner)
Last reviewed: 21 October 2025
Emergency MedicineAllergy
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regional clinical guidance

Anaphylaxis: guidance by region

Recommendations, thresholds and pathways can differ. Open the page written for the jurisdiction you need.

United StatesAnaphylaxis recognition, emergency treatment and follow-upEmergency / Allergy · reviewed 2026-08-20CanadaAnaphylaxis: assessment + referral after emergency treatmentEmergency / Allergy · reviewed 2026-08-20AustraliaAnaphylaxis: assessment + referral after emergency treatmentEmergency / Allergy · reviewed 2026-08-20

Clinical Guidelines

CKS: Angio-oedema and anaphylaxis
National
EAACI guidelines: Anaphylaxis (2021 update)
National
Emergency treatment of anaphylaxis
National
NICE guideline [CG134] - Full Guideline
National
Anaphylaxis: A 2023 practice parameter update (AAAAI/ACAAI)
Local
EAACI guidelines: Anaphylaxis (2021 update)
Local
Emergency treatment of anaphylaxis: concise clinical guidance (Resuscitation Council UK, May 2021)
Local
International consensus on (ICON) anaphylaxis
Local
NICE clinical guideline 134: Anaphylaxis: assessment to confirm an anaphylactic episode and the decision to refer after emergency treatment for a suspected anaphylactic episode
Local
World Allergy Organization Anaphylaxis Guidance 2020
Local