sympathomimetic drug


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sympathomimetic drug

(sĭmpăth'ōmĭmĕt`ĭk), any of a group of substances whose actions resemble the response of stimulated sympathetic nerves (see nervous systemnervous system,
network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the animal kingdom have at least a rudimentary nervous system.
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). These drugs include epinephrineepinephrine
, hormone important to the body's metabolism, also known as adrenaline. Epinephrine, a catecholamine, together with norepinephrine, is secreted principally by the medulla of the adrenal gland.
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 and other catecholaminescatecholamine
, any of several compounds occurring naturally in the body that serve as hormones or as neurotransmitters in the sympathetic nervous system. The catecholamines include such compounds as epinephrine, or adrenaline, norepinephrine, and dopamine.
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 that are naturally produced in the body, and chemically similar substances such as ephedrineephedrine
, drug derived from plants of the genus Ephedra (see Pinophyta), most commonly used to prevent mild or moderate attacks of bronchial asthma. Unlike epinephrine, to which it is chemically similar, ephedrine is slow to take effect and of mild potency and long
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. Sympathomimetic drugs excite the central nervous system and heart and affect the diameter of blood vessels. They are used as decongestants and to alleviate bronchial asthmaasthma
, chronic inflammatory respiratory disease characterized by periodic attacks of wheezing, shortness of breath, and a tight feeling in the chest. A cough producing sticky mucus is symptomatic.
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. Because they inhibit the production of the body substance histaminehistamine
, organic compound derived in the body from the amino acid histidine by the removal of a carboxyl group (COOH). Although found in many plant and animal tissues, histamine is specifically important in human physiology because it is one of the chemicals released from
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, they are prescribed for allergic conditions along with antihistaminesantihistamine
, any one of a group of compounds having various chemical structures and characterized by the ability to antagonize the effects of histamine. Their principal use in medicine is in the control of allergies such as hay fever and hives.
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References in periodicals archive ?
Amphetamines are known as a sympathomimetic drug stimulating the sympathicus in the brain and the spinal cord as part of the vegetative nervous system.
These studies suggested cathinone was an indirectly acting sympathomimetic drug having catecholamine-releasing properties at dopaminergic and serotonergic synapses, and at peripheral noradrenaline storage sites.
Because of this phenomenon, the authors of the Fundamentals of Diagnostic Radiology facetiously refer to sympathomimetic drug abuse as a "stress test for brain vascular anomalies".
However ephedrine, another sympathomimetic drug acting on both [alpha]- and [beta]-adrenergic receptors, is widely used in many parts of the world (1).
Intracavernosal treatment * Injection of sympathomimetic drugs (phenylephrine) 4.
Hypertension may result from use of illicit drugs, oral contraceptives, herbal supplements, nonsteroidal anti-inflammatory medications, some psychiatric medications, steroids, or sympathomimetic drugs like diet pills or decongestants (Vera & Neutze, 2010).
For instance, sympathomimetic drugs can lead to rapid increase in blood pressure, arrhythmias, myocardial infarction and heart failure,particularly in elderly patients with coronary artery disease.
Catecholamines, sympathomimetic drugs and adrenergic receptors antagonists.
Several classes of drugs including topical mydriatics anticolinergics antidepressants anticonvulsants antihistaminics sulphamate derivative adrenergics and sympathomimetic drugs have the capacity to actuate an acute attack of angle closure.
VENTRICULAR PREMATURE COMPLEXES [VPC]: VPC's are often the commonly seen arrhythmias during the peri-operative period and can be caused by cardiac and non-cardiac factors like electrolyte imbalances, hypoxia, hypercarbia, anesthetic agents, tobacco, caffeine, alcohol, sympathomimetic drugs and antidepressant drugs.
Summary: TEHRAN (FNA)- Researchers at Payam-e-Noor University of Tehran in collaboration with experts from Tabriz University of Medical Sciences found a simple synthesis method for zinc oxide (and hydroxide) and their application in modified carbon paste electrodes for determination of sympathomimetic drugs at micro-molar scales.