Adrenergic neuron blocking drugs

These drugs decrease the delivery of catecholamines such as norepinephrine to adrenergic receptors.


Norepinephrine:
It is an adrenergic neurotransmitter. It is stored in the granular organelles. It is secreted by adrenal glands.

Synthesis:
It is produced in sympathetic adrenergic neurons and attaches to adrenergic receptors.

Actions:

1. It elevates blood pressure and breathing rate.
2. It elevates blood sugar.
3. It causes a decline in the activity of the intestines.