When do you get adrenaline?

When you're acared. When your sympathetic nervous system is turned on high- meaning your body is ready to 'fight or flight, ' adrenaline is released by adrenal glands and some nerves. Bottled adrenaline used for medical purposes is epinephrine...
When life threatened. Epinephrine is an extremely powerful drug with many good features, and some very dangerous side effects. Basically, Epinephrine is used in cases of severe shock. It is usually infused through an iv, but it also can be given in an inhaler or injected into the muscle tissue. Too much Epinephrine can damage the heart!