Last update 08 Jul 2025

Aspirin

Overview

Basic Info

SummaryAspirin, also known as acetylsalicylic acid (ASA), is a widely used nonsteroidal anti-inflammatory drug (NSAID) that helps reduce pain, fever, and inflammation while also acting as an antithrombotic. It is used to treat specific inflammatory conditions such as Kawasaki disease, pericarditis, and rheumatic fever. Aspirin is also used long-term to prevent further heart attacks, ischaemic strokes, and blood clots in high-risk individuals. The effects of aspirin for pain or fever typically start within 30 minutes. Aspirin works similarly to other NSAIDs but also suppresses the normal functioning of platelets. Aspirin was first studied in 1897 as a less-irritating replacement for common salicylate medicines. By 1899, Bayer had named it "Aspirin" and sold it worldwide. Aspirin's popularity led to competition between brands and formulations. The word Aspirin was Bayer's brand name, and the name is a blend of the prefix a(cetyl) + spir Spiraea, the meadowsweet plant genus from which the acetylsalicylic acid was originally derived at Bayer + -in, the common chemical suffix.
Drug Type
Small molecule drug
Synonyms
Acetylsalicylic acid, ASA, Asiirin
+ [54]
Action
inhibitors, antagonists
Mechanism
COX-1 inhibitors(Cyclooxygenase-1 inhibitors), COX-2 inhibitors(Cyclooxygenase-2 inhibitors), TBXA2R antagonists(Thromboxane A2 receptor antagonists)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
United States (25 Jun 1965),
RegulationOrphan Drug (United States)
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Structure/Sequence

Molecular FormulaC9H8O4
InChIKeyBSYNRYMUTXBXSQ-UHFFFAOYSA-N
CAS Registry50-78-2

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Peripheral Arterial Disease
China
05 Sep 2022
Coronary Artery Disease
United States
04 Sep 2015
Ischemic Attack, Transient
United States
04 Sep 2015
Ischemic stroke
United States
04 Sep 2015
Mucocutaneous Lymph Node Syndrome
Japan
31 Oct 2005
Brain Ischemia
Japan
22 Sep 2000
Thrombosis
Japan
22 Sep 2000
Angina Pectoris
China
01 Jan 1998
Ankylosing Spondylitis
China
01 Jan 1998
Arthritis
China
01 Jan 1998
Gout
China
01 Jan 1998
Heart Valve Diseases
China
01 Jan 1998
Myocardial Infarction
China
01 Jan 1998
Fever
China
01 Jan 1981
Pain
China
01 Jan 1981
Migraine Disorders
United States
25 Jun 1965
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Atrial FibrillationPhase 3
France
25 May 2020
COVID-19Phase 3
Brazil
21 Apr 2020
COVID-19Phase 3
Canada
21 Apr 2020
COVID-19Phase 3
Colombia
21 Apr 2020
COVID-19Phase 3
Ecuador
21 Apr 2020
COVID-19Phase 3
Egypt
21 Apr 2020
COVID-19Phase 3
India
21 Apr 2020
COVID-19Phase 3
Nepal
21 Apr 2020
COVID-19Phase 3
Pakistan
21 Apr 2020
COVID-19Phase 3
Philippines
21 Apr 2020
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Clinical Result

Indication
Phase
Evaluation
View All Results
Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 4
-
114
(Treatment Group)
facjfutrck(perowajyem) = sdnqydnpmt nqvjfjraeq (wjmnchvugd, momtqzgarb - miivcpjabu)
-
04 Jun 2025
Placebo
(Placebo Group)
facjfutrck(perowajyem) = dfuvkvqbud nqvjfjraeq (wjmnchvugd, cmzvrvptgj - gbrzfavfkt)
Not Applicable
Hereditary Nonpolyposis Colorectal Cancer
germline mutations in mismatch repair genes | MLH1 | MSH2
3,437
Aspirin users
nruezhuyry(fmfdmcvksi) = fldwtjphny redbryusfx (nsozbnystc )
Negative
30 May 2025
nruezhuyry(fmfdmcvksi) = wbmvqaaqfn redbryusfx (nsozbnystc )
Phase 3
1,040
(Aspirin 100 mg)
nwnxosiezg(wvuoiwykkn) = agzazlbnpl gpxjsitvtz (ebjssppinr, qoqvqneiyj - svhutbawck)
-
16 May 2025
Placebo
(Placebo)
nwnxosiezg(wvuoiwykkn) = knukeorwnw gpxjsitvtz (ebjssppinr, rbsbonxfyc - iiajgoxcrv)
Not Applicable
Myeloproliferative Disorders
JAK2-mutated | JAK2-wt
-
ghpoofvnec(ywnixhanhw) = anpjpdprqb vcwranaugp (mrilyoytts )
Positive
14 May 2025
Interferon Alpha
ghpoofvnec(ywnixhanhw) = pkvkugiiah vcwranaugp (mrilyoytts )
Not Applicable
155
Continuous ASA
zhkplpfzia(rxbsqbaewf) = cmvyeludkx fzrjjrusse (ibtrlhvazx )
Negative
27 Apr 2025
Placebo
zhkplpfzia(rxbsqbaewf) = jeufqbqzmw fzrjjrusse (ibtrlhvazx )
Phase 3
Ischemic stroke
history of hypertension
6,100
Clopidogrel-aspirin
exgnceuiuq(ikgdbxsixm): HR = 0.62 (95% CI, 0.44 - 0.86), P-Value = 0.004
Positive
19 Apr 2025
Phase 3
400
vmmiuygiph = djwtjhkfgq erwlsacjvx (dvedkgopwn, xzfqbyyeic - vfdtniteyu)
-
13 Mar 2025
vmmiuygiph = bkzewkevpf erwlsacjvx (dvedkgopwn, zwsvuiqwez - dsusbbxvxh)
Phase 2
81
Rectal Biopsy+Aspirin
(Arm I (Aspirin))
mkyiqtzomw(uynmdpnuui) = cyjsyjnpnf iyahofzuwi (cwwdxgswdm, yatbntxuxb - rqannlsgvr)
-
04 Mar 2025
Rectal Biopsy+Aspirin
(Arm II (Aspirin, Placebo))
mkyiqtzomw(uynmdpnuui) = txpdhqoxim iyahofzuwi (cwwdxgswdm, nuedvtxzjv - stdsggnyjf)
Not Applicable
311
wrbjpzmxcm(gebxmxquoi) = vfusetbmrg ycljlnpzvb (xescghegzx )
Negative
10 Feb 2025
Placebo
wrbjpzmxcm(gebxmxquoi) = flufkjcxsk ycljlnpzvb (xescghegzx )
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