<unk>  drugs are substances that mimic the effects of the hormone epinephrine (adrenaline) and the hormone/neurotransmitter norepinephrine (noradrenaline). They all raise blood pressure and are all weak bases.
Sympathomimetic amine
Nicotinic antagonist
Indole alkaloid
Anticholinergic
Opioid
Betaines
Cannabinoids
Sympatholytic