What is the recommended management of anaphylaxis?

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Anaphylaxis demands immediate treatment with epinephrine given by intramuscular injection. Epinephrine works fast on several fronts: it constricts blood vessels to raise blood pressure and reduce swelling, relaxes the airways to ease breathing, and decreases further release of allergic mediators from immune cells. The mid-outer thigh is the preferred site because it provides rapid and reliable absorption, and dosing is typically weight-based for children and fixed for adults. If symptoms persist, another dose can be given after a short interval, and urgent care should continue with airway support, high-flow oxygen, and intravenous fluids as needed.

Other options fall short in this emergency: oral antihistamines don’t reverse airway obstruction or hypotension quickly enough and are not a substitute for epinephrine; inhaled bronchodilators may help bronchospasm but don’t treat the systemic reaction; observation alone misses the life-threatening process and delays essential treatment.