Identification
NameSulfadoxine
Accession NumberDB01299
TypeSmall Molecule
GroupsApproved
Description

A long acting sulfonamide that is used, usually in combination with other drugs, for respiratory, urinary tract, and malarial infections. [PubChem]

Structure
Thumb
Synonyms
4-Sulfanilamido-5,6-dimethoxypyrimidine
Sulfadoxina
Sulfadoxine
Sulfadoxinum
Sulforthomidine
Sulphadoxine
Sulphormethoxine
External IDs J21.373J / RO-4-4393 / WR-4073
Product Ingredients Not Available
Approved Prescription ProductsNot Available
Approved Generic Prescription ProductsNot Available
Approved Over the Counter ProductsNot Available
Unapproved/Other Products Not Available
International BrandsNot Available
Brand mixtures
NameLabellerIngredients
Fansidar TabletsHoffmann La Roche
Categories
UNII88463U4SM5
CAS number2447-57-6
WeightAverage: 310.329
Monoisotopic: 310.073575646
Chemical FormulaC12H14N4O4S
InChI KeyPJSFRIWCGOHTNF-UHFFFAOYSA-N
InChI
InChI=1S/C12H14N4O4S/c1-19-10-11(14-7-15-12(10)20-2)16-21(17,18)9-5-3-8(13)4-6-9/h3-7H,13H2,1-2H3,(H,14,15,16)
IUPAC Name
4-amino-N-(5,6-dimethoxypyrimidin-4-yl)benzene-1-sulfonamide
SMILES
COC1=NC=NC(NS(=O)(=O)C2=CC=C(N)C=C2)=C1OC
Pharmacology
Indication

Sulfadoxine is used in combination with pyrimethamine for the treatment or prevention of malaria. It can also be used to treat various infections in livestock as well. Sulfadoxine and pyrimethamine is indicated for the treatment of Plasmodium falciparum malaria in those patients in whom chloroquine resistance is suspected.

Structured Indications Not Available
Pharmacodynamics

Sulfadoxine helps inhibit the enzyme dihydropteroate synthetase which is an enzyme necessary in the conversion of PABA to folic acid. As folic acid is vital to the synthesis, repair, and methylation of DNA which is vital to cell growth in Plasmodium falciparum. With this vital nutrient lacking, the parasite has difficulty in reproducing.

Mechanism of action

Sulfadoxine is a sulfa drug, often used in combination with pyrimethamine to treat malaria. This medicine may also be used to prevent malaria in people who are living in, or will be traveling to, an area where there is a chance of getting malaria. Sulfadoxine targets Plasmodium dihydropteroate synthase and dihydrofolate reductase. Sulfa drugs or Sulfonamides are antimetabolites. They compete with para-aminobenzoic acid (PABA) for incorporation into folic acid. The action of sulfonamides exploits the difference between mammal cells and other kinds of cells in their folic acid metabolism. All cells require folic acid for growth. Folic acid (as a vitamin) diffuses or is transported into human cells. However, folic acid cannot cross bacterial (and certain protozoan) cell walls by diffusion or active transport. For this reason bacteria must synthesize folic acid from p-aminobenzoic acid.

TargetKindPharmacological actionActionsOrganismUniProt ID
Dihydropteroate synthetaseProteinyesNot AvailablePlasmodium falciparumQ27738 details
Bifunctional dihydrofolate reductase-thymidylate synthaseProteinunknown
inhibitor
Plasmodium falciparum (isolate K1 / Thailand)P13922 details
Related Articles
AbsorptionNot Available
Volume of distributionNot Available
Protein bindingNot Available
MetabolismNot Available
Route of eliminationNot Available
Half lifeNot Available
ClearanceNot Available
ToxicityNot Available
Affected organismsNot Available
PathwaysNot Available
Pharmacogenomic Effects/ADRs Not Available
Interactions
Drug Interactions
DrugInteractionDrug group
AcepromazineThe serum concentration of Acepromazine can be increased when it is combined with Sulfadoxine.Approved, Vet Approved
AceprometazineThe serum concentration of Aceprometazine can be increased when it is combined with Sulfadoxine.Approved
AlimemazineThe serum concentration of Alimemazine can be increased when it is combined with Sulfadoxine.Approved, Vet Approved
ArtemetherThe risk or severity of adverse effects can be increased when Artemether is combined with Sulfadoxine.Approved
BL-1020The serum concentration of BL-1020 can be increased when it is combined with Sulfadoxine.Investigational
ChlorpromazineThe serum concentration of Chlorpromazine can be increased when it is combined with Sulfadoxine.Approved, Vet Approved
DapsoneThe risk or severity of adverse effects can be increased when Sulfadoxine is combined with Dapsone.Approved, Investigational
DexketoprofenThe risk or severity of adverse effects can be increased when Dexketoprofen is combined with Sulfadoxine.Approved
FluphenazineThe serum concentration of Fluphenazine can be increased when it is combined with Sulfadoxine.Approved
LumefantrineThe risk or severity of adverse effects can be increased when Sulfadoxine is combined with Lumefantrine.Approved
MecamylamineThe risk or severity of adverse effects can be increased when Sulfadoxine is combined with Mecamylamine.Approved
MesoridazineThe serum concentration of Mesoridazine can be increased when it is combined with Sulfadoxine.Approved
MethotrimeprazineThe serum concentration of Methotrimeprazine can be increased when it is combined with Sulfadoxine.Approved
Methylene blueThe serum concentration of Methylene blue can be increased when it is combined with Sulfadoxine.Investigational
MoricizineThe serum concentration of Moricizine can be increased when it is combined with Sulfadoxine.Approved, Withdrawn
PerazineThe serum concentration of Perazine can be increased when it is combined with Sulfadoxine.Investigational
PerphenazineThe serum concentration of Perphenazine can be increased when it is combined with Sulfadoxine.Approved
ProchlorperazineThe serum concentration of Prochlorperazine can be increased when it is combined with Sulfadoxine.Approved, Vet Approved
PromazineThe serum concentration of Promazine can be increased when it is combined with Sulfadoxine.Approved, Vet Approved
PromethazineThe serum concentration of Promethazine can be increased when it is combined with Sulfadoxine.Approved
ThiethylperazineThe serum concentration of Thiethylperazine can be increased when it is combined with Sulfadoxine.Withdrawn
ThioridazineThe serum concentration of Thioridazine can be increased when it is combined with Sulfadoxine.Withdrawn
TrifluoperazineThe serum concentration of Trifluoperazine can be increased when it is combined with Sulfadoxine.Approved
TriflupromazineThe serum concentration of Triflupromazine can be increased when it is combined with Sulfadoxine.Approved, Vet Approved
Food InteractionsNot Available
References
Synthesis ReferenceNot Available
General ReferencesNot Available
External Links
ATC CodesG01AE10 — Combinations of sulfonamides
AHFS CodesNot Available
PDB EntriesNot Available
FDA labelNot Available
MSDSNot Available
Clinical Trials
Clinical Trials
PhaseStatusPurposeConditionsCount
1CompletedTreatmentAutoimmune Diseases / Lymphoproliferative Disorders1
2, 3CompletedPreventionPlasmodium Infections1
2, 3CompletedTreatmentPlasmodium Infections1
3CompletedPreventionPlasmodium Infections1
3CompletedTreatmentHuman Immunodeficiency Virus (HIV) Infections / Pneumonia, Pneumocystis Carinii1
3CompletedTreatmentPlasmodium Infections1
3RecruitingPreventionPlasmodium Infections / Pregnancy1
3TerminatedTreatmentPlasmodium Infections1
3WithdrawnTreatmentPlasmodium Falciparum Malaria1
4CompletedPreventionPlasmodium Infections1
4CompletedTreatmentPlasmodium Falciparum Malaria / Plasmodium Infections1
4Not Yet RecruitingPreventionMalaria caused by Plasmodium falciparum1
Pharmacoeconomics
ManufacturersNot Available
Packagers
Dosage forms
FormRouteStrength
TabletOral
PricesNot Available
PatentsNot Available
Properties
StateSolid
Experimental Properties
PropertyValueSource
melting point (°C)190-194 °CPhysProp
logP0.70SANGSTER (1994)
Predicted Properties
PropertyValueSource
Water Solubility0.296 mg/mLALOGPS
logP0.72ALOGPS
logP0.58ChemAxon
logS-3ALOGPS
pKa (Strongest Acidic)6.12ChemAxon
pKa (Strongest Basic)2.55ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area116.43 Å2ChemAxon
Rotatable Bond Count4ChemAxon
Refractivity77.81 m3·mol-1ChemAxon
Polarizability30.01 Å3ChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted ADMET features
PropertyValueProbability
Human Intestinal Absorption+0.9602
Blood Brain Barrier-0.5345
Caco-2 permeable-0.59
P-glycoprotein substrateNon-substrate0.8126
P-glycoprotein inhibitor INon-inhibitor0.832
P-glycoprotein inhibitor IINon-inhibitor0.8892
Renal organic cation transporterNon-inhibitor0.9164
CYP450 2C9 substrateNon-substrate0.693
CYP450 2D6 substrateNon-substrate0.9116
CYP450 3A4 substrateNon-substrate0.6464
CYP450 1A2 substrateNon-inhibitor0.9045
CYP450 2C9 inhibitorNon-inhibitor0.9071
CYP450 2D6 inhibitorNon-inhibitor0.9231
CYP450 2C19 inhibitorNon-inhibitor0.9026
CYP450 3A4 inhibitorNon-inhibitor0.8703
CYP450 inhibitory promiscuityHigh CYP Inhibitory Promiscuity0.6052
Ames testNon AMES toxic0.6456
CarcinogenicityNon-carcinogens0.8265
BiodegradationNot ready biodegradable0.996
Rat acute toxicity1.8756 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.9907
hERG inhibition (predictor II)Non-inhibitor0.7221
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397 )
Spectra
Mass Spec (NIST)Not Available
Spectra
Spectrum TypeDescriptionSplash Key
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0a4i-2901000000-8862dd6e93b57f07349bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-0a4i-3910000000-fbde0b31ef009afef44dView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-qTof , PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, NegativeNot Available
Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as aminobenzenesulfonamides. These are organic compounds containing a benzenesulfonamide moiety with an amine group attached to the benzene ring.
KingdomChemical entities
Super ClassOrganic compounds
ClassBenzenoids
Sub ClassBenzene and substituted derivatives
Direct ParentAminobenzenesulfonamides
Alternative ParentsBenzenesulfonyl compounds / Aniline and substituted anilines / Alkyl aryl ethers / Pyrimidines and pyrimidine derivatives / Primary aromatic amines / Organosulfonamides / Imidolactams / Heteroaromatic compounds / Aminosulfonyl compounds / Azacyclic compounds
SubstituentsAminobenzenesulfonamide / Benzenesulfonyl group / Aniline or substituted anilines / Alkyl aryl ether / Primary aromatic amine / Pyrimidine / Organosulfonic acid amide / Imidolactam / Organic sulfonic acid or derivatives / Heteroaromatic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptorssulfonamide, pyrimidines (CHEBI:9329 )

Targets

Kind
Protein
Organism
Plasmodium falciparum
Pharmacological action
yes
General Function:
Dihydropteroate synthase activity
Specific Function:
Not Available
Gene Name:
Not Available
Uniprot ID:
Q27738
Uniprot Name:
Dihydropteroate synthetase
Molecular Weight:
43370.845 Da
References
  1. Raman J, Little F, Roper C, Kleinschmidt I, Cassam Y, Maharaj R, Barnes KI: Five years of large-scale dhfr and dhps mutation surveillance following the phased implementation of artesunate plus sulfadoxine-pyrimethamine in Maputo Province, Southern Mozambique. Am J Trop Med Hyg. 2010 May;82(5):788-94. doi: 10.4269/ajtmh.2010.09-0401. [PubMed:20439956 ]
  2. Zhang GQ, Guan YY, Zheng B, Wu S, Tang LH: Molecular assessment of Plasmodium falciparum resistance to antimalarial drugs in China. Trop Med Int Health. 2009 Oct;14(10):1266-71. doi: 10.1111/j.1365-3156.2009.02342.x. [PubMed:19772548 ]
  3. Lumb V, Das MK, Mittra P, Ahmed A, Kumar M, Kaur P, Dash AP, Singh SS, Sharma YD: Emergence of an unusual sulfadoxine-pyrimethamine resistance pattern and a novel K540N mutation in dihydropteroate synthetase in Plasmodium falciparum isolates obtained from Car Nicobar Island, India, after the 2004 Tsunami. J Infect Dis. 2009 Apr 1;199(7):1064-73. doi: 10.1086/597206. [PubMed:19220141 ]
Kind
Protein
Organism
Plasmodium falciparum (isolate K1 / Thailand)
Pharmacological action
unknown
Actions
inhibitor
General Function:
Thymidylate synthase activity
Specific Function:
Bifunctional enzyme. Involved in de novo dTMP biosynthesis. Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, DNA precursor synthesis, and for the conversion of dUMP to dTMP.
Gene Name:
Not Available
Uniprot ID:
P13922
Uniprot Name:
Bifunctional dihydrofolate reductase-thymidylate synthase
Molecular Weight:
71816.775 Da
References
  1. Eriksen J, Mwankusye S, Mduma S, Kitua A, Swedberg G, Tomson G, Gustafsson LL, Warsame M: Patterns of resistance and DHFR/DHPS genotypes of Plasmodium falciparum in rural Tanzania prior to the adoption of sulfadoxine-pyrimethamine as first-line treatment. Trans R Soc Trop Med Hyg. 2004 Jun;98(6):347-53. [PubMed:15099990 ]
  2. Happi CT, Gbotosho GO, Folarin OA, Akinboye DO, Yusuf BO, Ebong OO, Sowunmi A, Kyle DE, Milhous W, Wirth DF, Oduola AM: Polymorphisms in Plasmodium falciparum dhfr and dhps genes and age related in vivo sulfadoxine-pyrimethamine resistance in malaria-infected patients from Nigeria. Acta Trop. 2005 Sep;95(3):183-93. [PubMed:16023986 ]
  3. Fernandes NE, Cravo P, do Rosario VE: [Sulfadoxine-pyrimethamine resistance in Maputo, Mozambique: presence of mutations in the dhfr and dhps genes of Plasmodium falciparum]. Rev Soc Bras Med Trop. 2007 Jul-Aug;40(4):447-50. [PubMed:17876469 ]
Drug created on June 30, 2007 08:21 / Updated on July 18, 2017 16:58