Cardiovascular effects of 2-(2,6-dichlorophenylamino)-2-imidazoline hydrochloride (ST 155). I. Peripheral sympathetic system.

Adrenal Glands/physiology Adrenalectomy Animals Antihypertensive Agents/pharmacology Blood Pressure/drug effects Cats Dogs Drug Synergism Ear/drug effects Electric Stimulation Epinephrine/antagonists & inhibitors Female Guinea Pigs Heart/drug effects Heart Rate/drug effects Imidazoles/pharmacology In Vitro Techniques Lung/drug effects Male Muscle Contraction/drug effects Nictitating Membrane/drug effects Norepinephrine/antagonists & inhibitors Peripheral Nerves/drug effects Phentolamine/pharmacology Rabbits Rats Reserpine/pharmacology Seminal Vesicles/drug effects Stimulation, Chemical Sympathetic Nervous System/drug effects

Antihypertensive Agents Imidazoles Reserpine Norepinephrine Epinephrine Phentolamine