Action of -adrenergic blocking drugs on the sympathetic centres and their interactions with the central sympatho-inhibitory effect of clonidine.

Adrenergic alpha-Antagonists/pharmacology Animals Blood Circulation/drug effects Blood Pressure/drug effects Cats Cisterna Magna Clonidine/antagonists & inhibitors,pharmacology Dogs Dose-Response Relationship, Drug Drug Interactions Female Heart/drug effects Heart Rate/drug effects Hypertension/chemically induced Male Splanchnic Nerves/drug effects Sympathetic Nervous System/drug effects Sympatholytics/pharmacology Sympathomimetics/pharmacology Vertebral Artery Yohimbine/pharmacology

Adrenergic alpha-Antagonists Sympatholytics Sympathomimetics Yohimbine Clonidine