Which medication is commonly used in cases of anaphylactic shock?

Epinephrine is the medication commonly used in cases of anaphylactic shock because it works effectively to counteract the severe and rapid physiological changes that occur during anaphylaxis. When someone experiences anaphylactic shock, their body releases large amounts of histamine and other chemicals, leading to symptoms such as airway constriction, swelling, and a drop in blood pressure.

Epinephrine acts quickly by stimulating alpha and beta-adrenergic receptors, which leads to vasoconstriction, increased heart rate, and bronchodilation. This mechanism helps to quickly reverse the life-threatening effects of anaphylaxis, restoring adequate breathing and circulation. Administering epinephrine as soon as symptoms are recognized is critical for preventing further complications and ensuring the best possible outcomes for the patient.

Other medications like antihistamines can help with allergic reactions but aren't effective in rapidly reversing the symptoms of anaphylaxis. Oxygen may be necessary to support respiratory function, but it doesn't address the underlying cause of the shock. Ibuprofen is an anti-inflammatory pain reliever that does not play a role in treating anaphylactic shock.