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A sympatholytic (sympathoplegic) drug is a medication that opposes the downstream effects of postganglionic nerve firing in effector organs innervated by the sympathetic nervous system (SNS). [1] They are indicated for various functions; for example, they may be used as antihypertensives .
Sympathomimetic drugs are used to treat cardiac arrest and low blood pressure, or even delay premature labor, among other things. These drugs can act through several mechanisms, such as directly activating postsynaptic receptors, blocking breakdown and reuptake of certain neurotransmitters, or stimulating production and release of catecholamines.
Autonomic drugs are substances that can either inhibit or enhance the functions of the parasympathetic and sympathetic nervous systems. This type of drug can be used to treat a wide range of diseases an disorders, including glaucoma, asthma, and disorders of the urinary, gastrointestinal and circulatory systems.
Adrenergic blocking agents are a class of drugs that exhibit its pharmacological action through inhibiting the action of the sympathetic nervous system [1] in the body. The sympathetic nervous system(SNS) is an autonomic nervous system that we cannot control by will.
Trimetaphan camsilate or trimethaphan camsylate (), trade name Arfonad, is a sympatholytic drug used in rare circumstances to lower blood pressure.. Trimetaphan is a ganglionic blocker: it counteracts cholinergic transmission at a specific type of nicotinic acetylcholine receptors in the autonomic ganglia and therefore blocks both the sympathetic nervous system and the parasympathetic nervous ...
[10] [11] It is also used in humans to treat acute agitation associated with schizophrenia or bipolar disorder. [5] It is administered as an injection or intravenous solution or as a buccal or sublingual film. [1] Similar to clonidine, dexmedetomidine is a sympatholytic drug that acts as an agonist of α 2-adrenergic receptors in certain parts ...
Anticholinergic drugs are used to treat a variety of conditions: Dizziness (including vertigo and motion sickness-related symptoms) Extrapyramidal symptoms, a potential side-effect of antipsychotic medications; Gastrointestinal disorders (e.g., peptic ulcers, diarrhea, pyloro spasm, diverticulitis, ulcerative colitis, nausea, and vomiting)
The related drug oxypertine shows high affinity for the serotonin 5-HT 2 and dopamine D 2 receptors (K i = 8.6 nM and 30 nM, respectively) and is also known to act as a catecholamine depleting agent. [ 8 ] [ 9 ] Oxypertine, milipertine, and solypertine all antagonize the behavioral effects of tryptamine , a serotonin receptor agonist , and ...