Adrenaline Bitartrate Injection, also known as epinephrine injection, is a life-saving medication used primarily to treat severe allergic reactions (anaphylaxis), cardiac arrest, and acute asthma attacks. It works by stimulating alpha and beta-adrenergic receptors, causing vasoconstriction, bronchodilation, and increased heart rate. These effects help restore normal breathing, improve blood circulation, and prevent a drop in blood pressure during emergencies. Adrenaline Bitartrate is also used during resuscitation efforts to restart the heart and improve cardiac output. Administered via intramuscular, subcutaneous, or intravenous routes, this medication should only be used under medical supervision due to its potent and immediate effects.