In case of anaphylaxis, what is the first-line treatment?

In the event of anaphylaxis, the first-line treatment is epinephrine due to its rapid action in counteracting the life-threatening symptoms associated with severe allergic reactions. Epinephrine works by activating alpha and beta-adrenergic receptors, leading to vasoconstriction, increased heart rate, and bronchodilation. This helps to alleviate airway swelling, improve blood circulation, and restore normal breathing functions.

While antihistamines can help manage some symptoms of allergic reactions, they do not address the acute, life-threatening aspects of anaphylaxis and take time to exert their effects. Corticosteroids can help reduce inflammation but are not effective in the immediate management of anaphylaxis. Oxygen therapy may be necessary for patients experiencing severe respiratory distress but is not considered a first-line treatment for anaphylactic reactions. The critical nature of anaphylaxis requires prompt intervention with epinephrine to ensure patient safety and prevent progression to more severe complications.