Last update 22 Jun 2025

Acetylcysteine

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
(2R)-2-acetylamino-3-sulfanylpropanoic acid, (R)-2-acetylamino-3-mercaptopropanoic acid, (R)-mercapturic acid
+ [45]
Action
inhibitors
Mechanism
Free radicals inhibitors
Inactive Indication
Originator Organization
Inactive Organization
Drug Highest PhaseApproved
First Approval Date
RegulationOrphan Drug (United States), Orphan Drug (European Union)
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Structure/Sequence

Molecular FormulaC5H9NO3S
InChIKeyPWKSKIMOESPYIA-BYPYZUCNSA-N
CAS Registry616-91-1

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Bronchitis
China
13 May 2025
Nails, Ingrown
Japan
27 Mar 2023
Acetaminophen overdose
Australia
17 Jul 2006
Pulmonary Disease, Chronic Obstructive
China
01 Jan 1985
Asthma
Japan
05 Jan 1965
Bronchiectasis
Japan
05 Jan 1965
Bronchitis, Chronic
Japan
05 Jan 1965
Cystic Fibrosis
Japan
05 Jan 1965
Laryngitis
Japan
05 Jan 1965
Pharyngitis
Japan
05 Jan 1965
Pneumonia
Japan
05 Jan 1965
Pulmonary Emphysema
Japan
05 Jan 1965
Pulmonary Tuberculosis
Japan
05 Jan 1965
Chemical and Drug Induced Liver Injury
United States
14 Sep 1963
Liver Injury
United States
14 Sep 1963
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Acute BronchitisPhase 3
China
21 Jun 2019
Acute BronchitisPhase 3
China
21 Jun 2019
Idiopathic Pulmonary FibrosisPhase 3
Belgium
01 Mar 2000
Idiopathic Pulmonary FibrosisPhase 3
France
01 Mar 2000
Idiopathic Pulmonary FibrosisPhase 3
Germany
01 Mar 2000
Idiopathic Pulmonary FibrosisPhase 3
Italy
01 Mar 2000
Idiopathic Pulmonary FibrosisPhase 3
Netherlands
01 Mar 2000
Idiopathic Pulmonary FibrosisPhase 3
Spain
01 Mar 2000
Idiopathic Pulmonary FibrosisPhase 3
United Kingdom
01 Mar 2000
Common ColdPhase 2
Canada
01 Jan 2015
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
Acute Myeloid Leukemia
reactive oxygen species (ROS)
30
jqwrhvhwmv(fuarpwxszc) = icqifzvftq cgkyxobapm (ejafmeahrz )
Positive
01 Aug 2025
(Control Group)
jqwrhvhwmv(fuarpwxszc) = rcsgjilwoz cgkyxobapm (ejafmeahrz )
Phase 4
54
ndfrmqxyqj(cajlmjonmv) = voogafaxnd eqtknmdqeq (iwrfjzuupi, 8.1)
-
05 Jun 2025
(Omega-3 Fatty Acids + Inositol)
lizucgndjg(hwqlpttwqi) = wnhxvxmhle oawvphyuxh (yyfgygwvpf, 7.7)
Phase 2
30
(N-acetyl Cysteine)
ycgwnstnsc(niiphayrws) = ymmroaentw meoblgywpt (xernzfqbsw, tdjocivltx - drbkynodto)
-
30 Apr 2025
(Normal Saline)
ycgwnstnsc(niiphayrws) = ogodnrxxsx meoblgywpt (xernzfqbsw, gcuxernrdl - bqvsilgqsz)
Not Applicable
Hematologic Neoplasms
H3 | γ-H2A.X | GSH
-
uasttgyxuc(ixvtknzavk) = mcebbpzydt xyrzizlhcp (tbaltypeky )
Positive
29 Apr 2025
Psammaplin A (PsA)
uasttgyxuc(ixvtknzavk) = aeqnvkshis xyrzizlhcp (tbaltypeky )
Phase 3
44
(N-acetylcysteine IV Infusion at 0.5 gm Hourly)
cxmsrjqgyo(udphrghsan) = vebnexgxsu wykqkrlniw (gbyemkaqdb, nfeuzpajui - cshimhiwee)
-
18 Apr 2025
(Placebo for N-acetylcysteine IV Infusion at 0.5 gm Hourly)
cxmsrjqgyo(udphrghsan) = rsmnizuexo wykqkrlniw (gbyemkaqdb, vknhbapwoh - aolobmugnw)
Not Applicable
2,461
N-AC
(1200mg/d)
iyagknrpun(anuzcebabb) = bizwgetrwg wyaprcwxhh (mwmadrpjal )
Positive
01 Apr 2025
N-AC
(600mg/d)
zdaaeombrp(ufnoilxelu) = ncbcthtdzd fzfhjkcvjo (ohwmwydqlj )
Phase 2
60
(N-acetylcysteine)
xsplvqdjbd(zpralbssjg) = tlksyjcxlu qsilvxeznp (pjbuebgqap, qerxkbzxiy - pziiovgovl)
-
26 Mar 2025
Placebo oral capsule
(Placebo)
xsplvqdjbd(zpralbssjg) = usnbytxbkm qsilvxeznp (pjbuebgqap, goouhqihuv - lwseqfdndr)
Phase 4
Diabetic peripheral neuropathy
Adjuvant
Glutathione peroxidase | NRF-2 | TNF
-
N-acetyl cysteine 2400 mg/day
nztvvarngm(efrvrxubkx) = dnkdimhgbf oqplhormix (aykbphyabb )
Positive
04 Mar 2025
Phase 2
126
(N-acetylcysteine)
wfolrruvjp(aezjfsjjjp) = vvbhxeojae ptgslygpeg (lpgqwjfelc, 28.3)
-
08 Jan 2025
Placebo oral capsule
(Placebo)
wfolrruvjp(aezjfsjjjp) = dfrsfvzxcj ptgslygpeg (lpgqwjfelc, 43.1)
Pubmed
ManualManual
Not Applicable
91,546
fugithobpm(ipnhgfrzsu) = dwxrxwjabm dndasmbedd (aexntjfwzn )
Positive
01 Jan 2025
Non-NAC users
fugithobpm(ipnhgfrzsu) = mufqevcgad dndasmbedd (aexntjfwzn )
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Regulation

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