Violation

The mechanism of action of prazosin, an antihypertensive agent is to

Inhibit the postsynaptic action of norepinephrine on vascular smooth muscle

Stimulate central inhibitory alpha-adrenergic receptors

Inhibit nerve-induced release of norepinephrine

Inhibit formation of angiotensin II

Block beta-adrenergic receptors

Please describe the matter of abuse