What does a sympathomimetic drug do?
What does a sympathomimetic drug do?
Sympathomimetic drugs mimic or stimulate the adrenergic nervous system, and they can raise blood pressure to alarming heights, particularly in hypertensive patients. Many hypertensive patients are sensitive to all pressors, probably because they have hypertrophied vascular smooth muscles.
What we mean by sympathomimetic?
sympathomimetic in the Pharmaceutical Industry A sympathomimetic is any drug that causes an effect similar to that produced by stimulation of the sympathetic nervous system. A sympathomimetic is any drug that causes an effect similar to that produced by stimulation of the sympathetic nervous system.
Is sympathomimetic a drug class?
Drug Class: A sympathomimetic amine that acts indirectly by releasing norepinephrine and directly by exerting a slight effect on α and β1 receptors and a moderate effect on β2 receptors mediating vasodilation. Therapeutic Effect: Produces cardiac stimulation.
How do you remember sympathomimetic drugs?
“DINED” is the acronym for examples of direct sympathomimetic drugs: Dopamine, Isoproterenol, Norepinephrine, Epinephrine, Dobutamine.
How do Sympatholytics work?
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).
What is the medical dictionary definition of sympathomimetics?
Producing physiological effects resembling those caused by the activity or stimulation of the sympathetic nervous system: a sympathomimetic hormone. n. A sympathomimetic drug or agent. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
How does a sympathomimetic drug mimic a sympathetic response?
Sympathomimetics Sympathomimetic drugs are agents which in general mimic responses due to stimulation of sympathetic nerves. These agents are able to directly activate adrenergic receptors or to indirectly activate them by increasing norepinephrine and epinephrine (mediators of the sympathoadrenal system) levels.
What are the side effects of sympathomimetic drugs?
Toxicities result from the drug’s sympathomimetic properties, which lead to hypertension and vasoconstriction, causing decreased uterine blood flow and fetal hypoxia. Possible overdose with a sympathomimetic agent such as cocaine.
Which is the best definition of intrinsic sympathomimetic activity?
intrinsic sympathomimetic activity. Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia. the property of a drug that causes activation of adrenergic receptors so as to produce effects similar to stimulation of the sympathetic nervous system.
What do sympathomimetics do?
Medical use of sympathomimetics is usually limited to serious or life-threatening conditions, such as treatment for a heart attack, dangerously low blood pressure, hemorrhagic shock, or a severe asthma attack resulting in the inability to breathe. They may also be used to prevent the onset of premature labor.
What does action do sympathomimetic drugs have in?
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 .
What are sympathomimetic drugs?
sympathomimetic drug (sĬmpăth´ōmĬmĕt´Ĭk), any of a group of substances whose actions resemble the response of stimulated sympathetic nerves (see nervous system). These drugs include epinephrine and other catecholamines that are naturally produced in the body, and chemically similar substances such as ephedrine.
What does sympathoadrenomedullary mean?
Sympathoadrenomedullary. meaning. Of or relating to the release of catecholamines (such as epinephrine and norepinephrine) from the adrenal medulla.