epinefríns

Epinefrín, also known as adrenaline, is a hormone and neurotransmitter produced by the adrenal glands and certain neurons. It plays a crucial role in the body's "fight or flight" response, preparing the body for intense physical activity. When a person experiences stress, fear, or excitement, the sympathetic nervous system triggers the release of epinefrín. This leads to a cascade of physiological changes, including an increased heart rate, elevated blood pressure, and a widening of the airways. Blood flow is redirected to the muscles and brain, while digestion slows down.

Medically, epinefrín is used to treat a variety of conditions. It is a primary treatment for anaphylaxis, a severe allergic reaction that can be life-threatening. Administered via an auto-injector, epinefrín constricts blood vessels, reducing swelling and increasing blood pressure, which helps to counteract the symptoms of anaphylaxis. It is also used in cardiac arrest to stimulate the heart and in certain surgical procedures to control bleeding by constricting blood vessels. Epinefrín can be administered through injection, inhalation, or intravenously, depending on the medical situation. While beneficial, its use requires careful medical supervision due to potential side effects such as rapid heart rate, tremors, and anxiety.