| D007022 |
Hypotension |
Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital organs. Common symptom is DIZZINESS but greater negative impacts on the body occur when there is prolonged depravation of oxygen and nutrients. |
Blood Pressure, Low,Hypotension, Vascular,Low Blood Pressure,Vascular Hypotension |
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| D007023 |
Hypotension, Controlled |
Procedure in which arterial blood pressure is intentionally reduced in order to control blood loss during surgery. This procedure is performed either pharmacologically or by pre-surgical removal of blood. |
Controlled Hypotension,Hypotension, Induced,Induced Hypotension |
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| D009125 |
Muscle Relaxants, Central |
A heterogeneous group of drugs used to produce muscle relaxation, excepting the neuromuscular blocking agents. They have their primary clinical and therapeutic uses in the treatment of muscle spasm and immobility associated with strains, sprains, and injuries of the back and, to a lesser degree, injuries to the neck. They have been used also for the treatment of a variety of clinical conditions that have in common only the presence of skeletal muscle hyperactivity, for example, the muscle spasms that can occur in MULTIPLE SCLEROSIS. (From Smith and Reynard, Textbook of Pharmacology, 1991, p358) |
Centrally Acting Muscle Relaxants,Central Muscle Relaxants,Relaxants, Central Muscle |
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| D001921 |
Brain |
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. |
Encephalon |
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| D005730 |
Ganglionic Blockers |
Agents having as their major action the interruption of neural transmission at nicotinic receptors on postganglionic autonomic neurons. Because their actions are so broad, including blocking of sympathetic and parasympathetic systems, their therapeutic use has been largely supplanted by more specific drugs. They may still be used in the control of blood pressure in patients with acute dissecting aortic aneurysm and for the induction of hypotension in surgery. |
Ganglionic Blocking Agents,Ganglioplegic Agents,Blocking Agents, Ganglionic,Ganglionic Blockaders,Agents, Ganglionic Blocking,Agents, Ganglioplegic,Blockaders, Ganglionic,Blockers, Ganglionic |
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| D006439 |
Hemodynamics |
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM. |
Hemodynamic |
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| D001337 |
Autonomic Agents |
Agents affecting the function of, or mimicking the actions of, the autonomic nervous system and thereby having an effect on such processes as respiration, circulation, digestion, body temperature regulation, certain endocrine gland secretions, etc. |
Autonomic Drugs,Autonomic Effect,Autonomic Effects,Agents, Autonomic,Drugs, Autonomic,Effect, Autonomic,Effects, Autonomic |
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| D013565 |
Sympatholytics |
Drugs that inhibit the actions of the sympathetic nervous system by any mechanism. The most common of these are the ADRENERGIC ANTAGONISTS and drugs that deplete norepinephrine or reduce the release of transmitters from adrenergic postganglionic terminals (see ADRENERGIC AGENTS). Drugs that act in the central nervous system to reduce sympathetic activity (e.g., centrally acting alpha-2 adrenergic agonists, see ADRENERGIC ALPHA-AGONISTS) are included here. |
Sympathetic-Blocking Agents,Sympatholytic,Sympatholytic Agent,Sympatholytic Drug,Sympatholytic Agents,Sympatholytic Drugs,Sympatholytic Effect,Sympatholytic Effects,Agent, Sympatholytic,Agents, Sympathetic-Blocking,Agents, Sympatholytic,Drug, Sympatholytic,Drugs, Sympatholytic,Effect, Sympatholytic,Effects, Sympatholytic,Sympathetic Blocking Agents |
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| D014294 |
Trimethaphan |
A nicotinic antagonist that has been used as a ganglionic blocker in hypertension, as an adjunct to anesthesia, and to induce hypotension during surgery. |
Thimethaphan,Trimetaphan |
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| D018738 |
Hexamethonium |
A nicotinic cholinergic antagonist often referred to as the prototypical ganglionic blocker. It is poorly absorbed from the gastrointestinal tract and does not cross the blood-brain barrier. It has been used for a variety of therapeutic purposes including hypertension but, like the other ganglionic blockers, it has been replaced by more specific drugs for most purposes, although it is widely used a research tool. |
Depressin,Hexamethonium Bitartrate,Hexamethonium Bromide,Hexamethonium Chloride,Hexamethonium Dibromide,Hexamethonium Dibromide Dihydrate,Hexamethonium Dichloride Dihydrate,Hexamethonium Dihydroxide,Hexamethonium Diiodide,Hexamethonium Dimethylsulfate,Hexamethonium Diperchlorate,Hexamethonium Iodide,Hexamethonium Monotartrate,Hexonium,Bitartrate, Hexamethonium,Bromide, Hexamethonium,Chloride, Hexamethonium,Dibromide Dihydrate, Hexamethonium,Dibromide, Hexamethonium,Dichloride Dihydrate, Hexamethonium,Dihydrate, Hexamethonium Dibromide,Dihydrate, Hexamethonium Dichloride,Dihydroxide, Hexamethonium,Diiodide, Hexamethonium,Dimethylsulfate, Hexamethonium,Diperchlorate, Hexamethonium,Iodide, Hexamethonium,Monotartrate, Hexamethonium |
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