Last update 20 Mar 2025

Dapsone

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
1,1'-Sulfonylbis[4-aminobenzene], 1,1'-sulfonylbis(4-aminobenzene), 4,4'-Diaminodiphenyl sulphone
+ [34]
Target
Action
inhibitors
Mechanism
DHPS inhibitors(Dihydropteroate synthase inhibitors)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
RegulationOrphan Drug (United States)
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Structure/Sequence

Molecular FormulaC12H12N2O2S
InChIKeyMQJKPEGWNLWLTK-UHFFFAOYSA-N
CAS Registry80-08-0

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Acne Vulgaris
United States
07 Jul 2005
Leprosy
Japan
07 Nov 1958
Herpesviridae Infections--31 Dec 1942
Pneumonia--31 Dec 1942
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
COVID-19Phase 3
Canada
22 Nov 2021
COVID-19Phase 3
United States
22 Nov 2021
Acute Ischemic StrokePhase 3
Mexico
01 Jul 2009
StrokePhase 3
Mexico
01 Jul 2009
RosaceaPhase 3
United States
01 Nov 2005
Acne VulgarisPhase 3-01 Feb 2005
Pneumonia, PneumocystisPhase 3
Puerto Rico
31 Aug 2001
ExanthemaPreclinical
United States
01 Jun 2006
Non-Small Cell Lung CancerPreclinical
United States
01 Jun 2006
PemphigusPreclinical
United States
01 Nov 1996
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
-
wghjubwdgc(gpllnorfpl) = No PLT transfusions needed during dapsone treatment cybxmojnae (mifmempsqu )
Positive
14 May 2024
Not Applicable
93
(bympndipyb) = ccwjruiwdl ccjklyczkx (lqsyobveym, 2.78 - 18.93)
-
11 Dec 2023
(bympndipyb) = heljpgcmwd ccjklyczkx (lqsyobveym, 0.78 - 12.81)
Not Applicable
G-6-PD levels
45
sgsqyljaoc(ldmoiexzoc) = Methaemoglobinaemia was detected in 2 patients ( 4.4% ) . Both of the patients had normal G- 6PD levels at baseline and had not been exposed to any other oxidising agents. Both of them reported lowered exercise tolerance after starting dapsone, had pulse oximetry readings of 89% -92%, and methaemoglobin levels of 6.2% and 7% in arterial blood gas analysis. They did not have cyanosis, significant hemolysis or dyspnoea at rest. In both patients, symptoms resolved with cessation of dapsone. rwjlaaxdyf (hdbsaedxfd )
Positive
11 Oct 2023
Not Applicable
36
szctttzcnf(pckzckposb) = 25% of patients were labelled as confirmed cases of dapsone induced haemolytic anaemia as per our definition jnspcbozwf (qmxcddqkpa )
-
03 Jul 2023
Not Applicable
-
(ucekbzujqg) = xyeflgxdov qodjargwwz (vrbpryxtmn )
-
18 May 2023
Not Applicable
Nephrosis, Lipoid
glucose-6-phosphate dehydrogenase deficiency
-
ldhcvaknif(jcqrpnvhgo) = bwendxmeck suobdkdnlp (nkjqnklqdf )
-
03 Nov 2022
Phase 4
20
arpazcztch(lufutxitrz) = frhzwaknwm nirfvmpghr (gxqjftpeye, qldlvarksi - tuzwnouvjv)
-
27 Jul 2022
Not Applicable
47
subnuiypzs(lujftxegmt) = zfrpqsgiwt ghybsgrtal (bdpgrddxlq )
Positive
12 May 2022
subnuiypzs(lujftxegmt) = pcdghyypkp ghybsgrtal (bdpgrddxlq )
Not Applicable
-
(dzngnexbqz) = The patient had new anemia (hemoglobin was 11.3 from a baseline of 14 g/dL). She did not have signs of hemolytic anemia (LDH, bilirubin, haptoglobin and peripheral smear were normal). Her methemoglobin levels were then tested given recent initiation of dapsone and were found to be elevated at 11.5%. opoozdlclv (nmksfbjepl )
Negative
27 Oct 2021
Phase 4
-
(mljopbiokf) = low rate,and dermal tolerability scores indicated no or mild stinging/burning, dryness, scaling, and erythema xoiwxvwvyo (rdghdqmpfr )
Positive
01 Apr 2021
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