What is the first-line treatment given in times of anaphylaxis?

Epinephrine is the first-line treatment for anaphylaxis due to its rapid onset and multiple effects that counteract the life-threatening symptoms of anaphylactic shock. Anaphylaxis is a severe allergic reaction that can lead to airway constriction, significant drops in blood pressure, and other systemic effects.

Epinephrine works by causing vasoconstriction, which increases blood pressure; bronchodilation, which opens the airways; and reducing vascular permeability, thereby alleviating swelling and hives. This immediate action is critical because anaphylactic reactions can progress very quickly, often within minutes, making prompt intervention essential.

Other treatments such as corticosteroids and antihistamines are important for managing allergic reactions and preventing recurrence, but they do not act quickly enough to address the acute symptoms associated with anaphylaxis. Antipyretics are used to reduce fever and are not applicable to anaphylaxis scenarios. Therefore, epinephrine remains the essential and lifesaving first treatment in these acute allergic reactions.