Cholecystokinin/toxicity; Receptors, Cholecystokinin/drug effects; Sincalide/toxicity; Adrenalectomy; Adrenergic Agents/administration & dosage; Adrenergic Agents/pharmacology; Adrenergic Agents/therapeutic use; Animals; Benzodiazepinones/administration & dosage; Benzodiazepinones/pharmacology; Benzodiazepinones/therapeutic use; Blood Pressure/drug effects; Bradycardia/chemically induced; Decerebrate State; Devazepide; Dose-Response Relationship, Drug; Gastrins/administration & dosage; Gastrins/toxicity; Guanethidine/administration & dosage; Guanethidine/pharmacology; Guanethidine/therapeutic use; Heart Rate/drug effects; Hormone Antagonists/administration & dosage; Hormone Antagonists/pharmacology; Hormone Antagonists/therapeutic use; Hormones/administration & dosage; Hormones/toxicity; Hypertension/chemically induced; Indoles/administration & dosage; Indoles/pharmacology; Indoles/therapeutic use; Male; Meglumine/administration & dosage; Meglumine/analogs & derivatives; Meglumine/pharmacology; Meglumine/therapeutic use; Pentagastrin/administration & dosage; Pentagastrin/pharmacology; Phentolamine/administration & dosage; Phentolamine/pharmacology; Phentolamine/therapeutic use; Proglumide/administration & dosage; Proglumide/analogs & derivatives; Proglumide/pharmacology; Proglumide/therapeutic use; Rats; Receptors, Cholecystokinin/metabolism; Tetragastrin/administration & dosage; Tetragastrin/toxicity