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Aspirin

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Pleasemak this airticle mair better gin ye can. (Dizember 2020)
Aspirin
Clinical data
AHFS/Drugs.commonograph
MedlinePlusa682878
Pregnancy
category
Routes o
admeenistration
Maist commonly oral, whiles rectal,lysine acetylsalicylate mey be givenIV orIM
ATC code
Legal status
Legal status
Pharmacokinetic data
BioavailabilityRapidly an completely absorbed
Protein bindin99.6%
MetabolismHepatic
Biological hauf-life300–650 mg dose: 3.1–3.2 h
1 g dose: 5 h
2 g dose: 9 h
ExcretionRenal
Identifiers
  • 2-acetoxybenzoic acid
Synonyms2-acetyloxybenzoic acid
acetylsalicylate
acetylsalicylic acid
O-acetylsalicylic acid
CAS Nummer
PubChemCID
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
ECHA InfoCard100.000.059
Chemical and physical data
FormulaC9H8O4
Molar mass180.157 g/mol
3D model (Jmol)
Density1.40 g/cm3
Meltin pynt136 °C (277 °F)
Bylin pynt140 °C (284 °F) (decomposes)
Solubility in watter3 mg/mL (20 °C)
  • O=C(Oc1ccccc1C(=O)O)C
  • InChI=1S/C9H8O4/c1-6(10)13-8-5-3-2-4-7(8)9(11)12/h2-5H,1H3,(H,11,12) YesY
  • Key:BSYNRYMUTXBXSQ-UHFFFAOYSA-N YesY
  (verify)

Aspirin (USAN), kent asacetylsalicylic acid (/əˌsɛtəlˌsælˈsɪlk/ə-SET-əl-SAL-i-SIL-ik an aw; abbreviatitASA), is asalicylatedrug, eften uised as ananalgesic tae relieve minor aches an pains, as anantipyretic tae reduce fever, an as ananti-inflammatory medication. Aspirin wis first isolatit biFelix Hoffmann, a chemist wi the German companyBayer in 1897.[1][2]

Salicylic acid, the main metabolite o aspirin, is an integral pairt o human an ainimal metabolism. While in humans much o it is attributable tae diet, a substantial pairt is synthesizedendogenously.[3]

Aspirin forby haes anantiplatelet effect bi inhibitin the production othromboxane, which unner normal circumstances bindsplatelet molecules thegither tae create a patch ower damaged walls o bluid vessels. Acause the platelet patch can acome too muckle an block bluid flow an aw, locally an dounstream, aspirin is uised lang-term, at law doses, tae help preventhert attacks,strokes, anbluid clot formation in fowk at heich risk o developin bluid clots an aw.[4] It haes been established that law doses o aspirin mey be gien immediately efter a hert attack tae reduce the risk o anither hert attack or o the daith o cardiac tissue an aw.[5][6]Aspirin mey be effective at preventin certain types o cancer, parteecularlycolorectal cancer.[7][7][8][9]

The mainundesirable side effects o aspirin taken bi muith aregastrointestinalulcers, painch bleedin, antinnitus, especially in heicher doses. In childer an adolescents, aspirin is na langer indicatit tae controlflu-like symptoms or the symptoms ochickenpox or ither viral illnesses, acause o the risk oReye's syndrome.[10]

Aspirin is pairt o a group o medications criednonsteroidal anti-inflammatory drugs (NSAIDs), but differs frae maist ither NSAIDs in themechanism o action. Tho it, an ithers in its group cried the salicylates, hae seemilar effects (antipyretic, anti-inflammatory, analgesic) tae the ither NSAIDs an inhibit the same enzymecyclooxygenase, aspirin (but nae the ither salicylates) daes sae in anirreversible manner an, unlik ithers, affects mair the COX-1 variant than the COX-2 variant o the enzyme.[11]

The day, aspirin is ane o the maist widely uised medications in the warld, wi an estimatit 40,000tonnes o it bein consumed each year.[12] In kintras whaur Aspirin is a registered trademark awned biBayer, the generic term is acetylsalicylic acid (ASA).[13]

References

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  1. Sneader, W (December 2000)."The discovery of aspirin: a reappraisal".BMJ (Clinical research ed.).321 (7276): 1591–4.doi:10.1136/bmj.321.7276.1591.PMC 1119266.PMID 11124191.
  2. Karsten Schrör (2009).Acetylsalicylic acid.ISBN 978-3-527-32109-4. Archived fraethe original on 31 Mairch 2020. Retrieved18 Julie 2013.
  3. Paterson, JR; Baxter, G; Dreyer, JS; Halket, JM; Flynn, R; Lawrence, JR (24 December 2008). "Salicylic acid sans aspirin in animals and man: persistence in fasting and biosynthesis from benzoic acid".Journal of agricultural and food chemistry.56 (24): 11648–52.PMID 19053387.
  4. Lewis, H. Daniel; Davis, James W.; Archibald, Donald G.; Steinke, William E.; Smitherman, Thomas C.; Doherty, James E.; Schnaper, Harold W.; LeWinter, Martin M.; Linares, Esteban; Pouget, J. Maurice; Sabharwal, Subhash C.; Chesler, Elliot; DeMots, Henry (18 August 1983)."Protective Effects of Aspirin against Acute Myocardial Infarction and Death in Men with Unstable Angina. Results of a Veterans Administration Cooperative Study".New England Journal of Medicine.309 (7): 396–403.doi:10.1056/NEJM198308183090703.ISSN 0028-4793.PMID 6135989.
  5. Julian, D G; Chamberlain, D A; Pocock, S J (7 December 1996)."A comparison of aspirin and anticoagulation following thrombolysis for myocardial infarction (the AFTER study): a multicentre unblinded randomised clinical trial".BMJ.313 (7070): 1429–1431.doi:10.1136/bmj.313.7070.1429.PMC 2353012.PMID 8973228.
  6. Krumholz, H. M.; Radford, M. J.; Ellerbeck, E. F.; Hennen, J.; Meehan, T. P.; Petrillo, M.; Wang, Y.; Kresowik, T. F.; Jencks, S. F. (15 November 1995)."Aspirin in the Treatment of Acute Myocardial Infarction in Elderly Medicare Beneficiaries : Patterns of Use and Outcomes".Circulation.92 (10): 2841–2847.doi:10.1161/01.CIR.92.10.2841.PMID 7586250.
  7. abAlgra, Annemijn M; Rothwell, Peter M (2012)."Effects of regular aspirin on long-term cancer incidence and metastasis: A systematic comparison of evidence from observational studies versus randomised trials".The Lancet Oncology.13 (5): 518–27.doi:10.1016/S1470-2045(12)70112-2.PMID 22440112.
  8. Rothwell, Peter M; Price, Jacqueline F; Fowkes, F Gerald R; Zanchetti, Alberto; Roncaglioni, Maria Carla; Tognoni, Gianni; Lee, Robert; Belch, Jill FF; Wilson, Michelle (2012). "Short-term effects of daily aspirin on cancer incidence, mortality, and non-vascular death: Analysis of the time course of risks and benefits in 51 randomised controlled trials".The Lancet.379 (9826): 1602.doi:10.1016/S0140-6736(11)61720-0.
  9. Rothwell, Peter M; Wilson, Michelle; Price, Jacqueline F; Belch, Jill FF; Meade, Tom W; Mehta, Ziyah (2012). "Effect of daily aspirin on risk of cancer metastasis: A study of incident cancers during randomised controlled trials".The Lancet.379 (9826): 1591.doi:10.1016/S0140-6736(12)60209-8.
  10. Macdonald S (2002)."Aspirin use to be banned in under 16-year olds".BMJ.325 (7371): 988.doi:10.1136/bmj.325.7371.988/c.PMC 1169585.PMID 12411346.
  11. Burke, Anne; Smyth, Emer; FitzGerald, Garret A. (2006). "26: Analgesic Antipyretic and Antiinflammatory Agents".Goodman and Gilman's the pharmacological basis of therapeutics (11 ed.). New York: McGraw-Hill. pp. 671–716.ISBN 978-0-07-142280-2. Archived fraethe original on 28 November 2017. Retrieved18 Julie 2013.
  12. Warner, T. D.; Warner TD; Mitchell JA (2002)."Cyclooxygenase-3 (COX-3): filling in the gaps toward a COX continuum?".Proc Natl Acad Sci USA.99 (21): 13371–3.doi:10.1073/pnas.222543099.PMC 129677.PMID 12374850. Archived fraethe original on 28 Mey 2008. Retrieved18 Julie 2013.
  13. "The use of aspirin". Wordconstructions.com. Archived fraethe original on 20 Juin 2010. Retrieved11 Mey 2011.

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