Tricyclic antidepressant: Difference between revisions
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In [[medicine]] and [[pharmacology]], '''tricyclic antidepressants''' are [[adrenergic uptake inhibitor]]s that "contain a fused three-ring moiety and are used in the treatment of [[depression]]. These drugs block the uptake of [[norepinephrine]] and [[serotonin]] into axon terminals and may block some subtypes of serotonin, adrenergic, and [[histamine]] receptors. However the mechanism of their antidepressant effects is not clear because the therapeutic effects usually take weeks to develop and may reflect compensatory changes in the central nervous system."<ref>{{MeSH}}</ref> | In [[medicine]] and [[pharmacology]], '''tricyclic antidepressants''' are [[adrenergic uptake inhibitor]]s that "contain a fused three-ring moiety and are used in the treatment of [[depression]]. These drugs block the uptake of [[norepinephrine]] and [[serotonin]] into axon terminals and may block some subtypes of serotonin, adrenergic, and [[histamine]] receptors. However the mechanism of their antidepressant effects is not clear because the therapeutic effects usually take weeks to develop and may reflect compensatory changes in the central nervous system."<ref>{{MeSH}}</ref> | ||
Older tricyclics include [[amitriptyline]], [[doxepin]], and [[imipramine]] have a tertiary-amine side chain block both [[serotonin]] and [[norepinephrine]] and increase [[drug toxicity]].<ref name="isbn0-07-142280-3">{{cite book |author= |authorlink= |editor=Keith Parker; Laurence Brunton; Goodman, Louis Sanford; Lazo, John S.; Gilman, Alfred |others= |title=Goodman & Gilman's The Pharmacological Basis of Therapeutics |edition=11th |chapter=Antidepressant Agents |chapterurl= |language= |publisher=McGraw-Hill |location=New York |year=2006 |origyear= |pages= |quote= |isbn=0-07-142280-3 |oclc= |doi= |url=http://www.accessmedicine.com/resourceTOC.aspx?resourceID=28 |accessdate=}}</ref> | ==Classification== | ||
===Tertiary amine tricyclics=== | |||
Older tricyclics include [[amitriptyline]], [[doxepin]], and [[imipramine]] have a tertiary-amine side chain block both [[serotonin]] and [[norepinephrine]] and increase [[parasympathetic nervous system|anticholinergic]] [[drug toxicity]].<ref name="isbn0-07-142280-3">{{cite book |author= |authorlink= |editor=Keith Parker; Laurence Brunton; Goodman, Louis Sanford; Lazo, John S.; Gilman, Alfred |others= |title=Goodman & Gilman's The Pharmacological Basis of Therapeutics |edition=11th |chapter=Antidepressant Agents |chapterurl= |language= |publisher=McGraw-Hill |location=New York |year=2006 |origyear= |pages= |quote= |isbn=0-07-142280-3 |oclc= |doi= |url=http://www.accessmedicine.com/resourceTOC.aspx?resourceID=28 |accessdate=}}</ref> | |||
===Secondary amine tricyclics=== | |||
Secondary amine tricyclics include desipramine, nortriptyline, and others have less [[parasympathetic nervous system|anticholinergic]] [[drug toxicity]]. | |||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 07:48, 19 December 2008
In medicine and pharmacology, tricyclic antidepressants are adrenergic uptake inhibitors that "contain a fused three-ring moiety and are used in the treatment of depression. These drugs block the uptake of norepinephrine and serotonin into axon terminals and may block some subtypes of serotonin, adrenergic, and histamine receptors. However the mechanism of their antidepressant effects is not clear because the therapeutic effects usually take weeks to develop and may reflect compensatory changes in the central nervous system."[1]
Classification
Tertiary amine tricyclics
Older tricyclics include amitriptyline, doxepin, and imipramine have a tertiary-amine side chain block both serotonin and norepinephrine and increase anticholinergic drug toxicity.[2]
Secondary amine tricyclics
Secondary amine tricyclics include desipramine, nortriptyline, and others have less anticholinergic drug toxicity.
References
- ↑ Anonymous (2024), Tricyclic antidepressant (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ (2006) “Antidepressant Agents”, Keith Parker; Laurence Brunton; Goodman, Louis Sanford; Lazo, John S.; Gilman, Alfred: Goodman & Gilman's The Pharmacological Basis of Therapeutics, 11th. New York: McGraw-Hill. ISBN 0-07-142280-3.