Adrenalinum

Adrenaline is a hormone that is produced by the adrenal gland. It is also referred to as epinephrine. Adrenaline is responsible for the body's "fight or flight" response. This response is activated when a person is in danger and the body needs to respond quickly. Adrenaline causes the heart rate to increase, the blood pressure to rise, and the person to become more alert. It also causes the person to become more focused and to have more energy.