Epinephrine and norepinephrine are neurotransmitters. They deliver signals between nerve cells and hormones. They also feature in medications for cardiovascular problems. Epinephrine and ...

Epinephrine, also known as adrenaline, is a hormone involved in your body’s “fight or flight” response. Epinephrine is produced by the adrenal glands, located on top of each of your kidneys.

People use epinephrine injections as a medication to treat severe allergic reactions. Epinephrine, also called adrenaline, is a hormone that the adrenal glands produce in the body. People who have ...