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Record Information
Version2.0
Creation Date2009-07-21 20:27:22 UTC
Update Date2014-12-24 20:25:52 UTC
Accession NumberT3D2853
Identification
Common NameAcamprosate
ClassSmall Molecule
DescriptionAcamprosate, also known by the brand name Campral™, is a drug used for treating alcohol dependence. Acamprosate is thought to stabilize the chemical balance in the brain that would otherwise be disrupted by alcoholism, possibly by blocking glutaminergic N-methyl-D-aspartate receptors, while gamma-aminobutyric acid type A receptors are activated. Reports indicate that acamprosate only works with a combination of attending support groups and abstinence from alcohol. Certain serious side effects include allergic reactions, irregular heartbeats, and low or high blood pressure, while less serious side effects include headaches, insomnia, and impotence. Acamprosate should not be taken by people with kidney problems or allergies to the drug.
Compound Type
  • Alcohol Deterrent
  • Amide
  • Amine
  • Drug
  • Metabolite
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
3-(Acetylamino)propanesulphonic acid
3-Acetamido-1-propanesulfonic acid
Acamprosato
Acamprosatum
Acamprosic acid
Campral
N-acetyl homotaurine
N-Acetylhomotaurine
Regtect
Chemical FormulaC5H11NO4S
Average Molecular Mass181.210 g/mol
Monoisotopic Mass181.041 g/mol
CAS Registry Number77337-76-9
IUPAC Name3-acetamidopropane-1-sulfonic acid
Traditional Nameacamprosate
SMILESCC(O)=NCCCS(O)(=O)=O
InChI IdentifierInChI=1S/C5H11NO4S/c1-5(7)6-3-2-4-11(8,9)10/h2-4H2,1H3,(H,6,7)(H,8,9,10)
InChI KeyInChIKey=AFCGFAGUEYAMAO-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as organosulfonic acids. Organosulfonic acids are compounds containing the sulfonic acid group, which has the general structure RS(=O)2OH (R is not a hydrogen atom).
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassOrganic sulfonic acids and derivatives
Sub ClassOrganosulfonic acids and derivatives
Direct ParentOrganosulfonic acids
Alternative Parents
Substituents
  • Organosulfonic acid
  • Sulfonyl
  • Alkanesulfonic acid
  • Carboximidic acid
  • Carboximidic acid derivative
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
Solubility1.88e+01 g/L
LogP-1.1
Predicted Properties
PropertyValueSource
Water Solubility18.8 g/LALOGPS
logP-1.8ALOGPS
logP-2.8ChemAxon
logS-0.98ALOGPS
pKa (Strongest Acidic)-1.1ChemAxon
pKa (Strongest Basic)-0.47ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area83.47 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity38.91 m³·mol⁻¹ChemAxon
Polarizability17.17 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-007o-9100000000-8420bb56903c56b30a732017-09-01View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-1900000000-095fc64fb4490a8d6b4d2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-0900000000-c177d5ee7162b0b8756d2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-0900000000-40eaa1bb480a683309402017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-1900000000-35bfe6cae36755d1cf1c2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-0059-9500000000-d366cda3213379d7501b2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-004i-9000000000-4374601f59e1dc8df0eb2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-004i-9000000000-011f30e0257faffd45532017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-0900000000-c179316d784a91f87c592017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-0900000000-8cf123c7cf7dddcf68382017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-1900000000-84a7d1cc6ca5022d4da72017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-0059-9500000000-4503d9afc6bab741521b2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-004i-9000000000-8c2ba21c044eeada78392017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-004i-9000000000-dd14c920c5211780d1722017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , negativesplash10-001i-1900000000-dac38f625c8648b643c42017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0006-0900000000-3684e08456a971400c3d2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0006-0900000000-6137fe4463b3675f55eb2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-00di-0900000000-58f776a52000101b8fb72017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-0006-0900000000-d8de420d40b45a34ea952017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-001l-0900000000-1bb28abe8034966ad8292017-09-14View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0019-0900000000-343cd651472c88796a612016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-05g0-5900000000-0c71e48c69c18769563d2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9300000000-181e815cd85a7505ce4a2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-4900000000-1f6b18b2f30371ea12ba2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-9500000000-50bd4d569514037edb1b2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001i-9000000000-ec0629ff72c5e58a04132016-08-03View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
Toxicity Profile
Route of ExposureThe absolute bioavailability of acamprosate after oral administration is about 11%. The food effect on absorption is not clinically significant and no adjustment of dose is necessary.
Mechanism of ToxicityThe mechanism of action of acamprosate in maintenance of alcohol abstinence is not completely understood. Chronic alcohol exposure is hypothesized to alter the normal balance between neuronal excitation and inhibition. in vitro and in vivo studies in animals have provided evidence to suggest acamprosate may interact with glutamate and GABA neurotransmitter systems centrally, and has led to the hypothesis that acamprosate restores this balance. It seems to inhibit NMDA receptors while activating GABA receptors.
MetabolismAcamprosate does not undergo metabolism. Route of Elimination: Following oral administration of CAMPRAL™, the major route of excretion is via the kidneys as acamprosate. Half Life: 20 - 33 hours
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesFor the maintenance of abstinence from alcohol in patients with alcohol dependence who are abstinent at treatment initiation
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsIn all reported cases of acute overdosage with acamprosate (total reported doses of up to 56 grams of acamprosate calcium), the only symptom that could be reasonably associated with acamprosate was diarrhea.
TreatmentTreatment consists of discontinuation of Acamprosate together with appropriate symptomatic therapy. The judicious use of a cardioselective beta-receptor blocker may beconsidered, bearing in mind that such medication can produce bronchospasm. (8)
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDDB00659
HMDB IDHMDB14797
PubChem Compound ID71158
ChEMBL IDCHEMBL1201293
ChemSpider ID64300
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI ID51041
BioCyc IDNot Available
CTD IDNot Available
Stitch IDAcamprosate
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkAcamprosate
References
Synthesis ReferenceNot Available
MSDST3D2853.pdf
General References
  1. Williams SH: Medications for treating alcohol dependence. Am Fam Physician. 2005 Nov 1;72(9):1775-80. [16300039 ]
  2. Mason BJ: Treatment of alcohol-dependent outpatients with acamprosate: a clinical review. J Clin Psychiatry. 2001;62 Suppl 20:42-8. [11584875 ]
  3. Mason BJ, Goodman AM, Chabac S, Lehert P: Effect of oral acamprosate on abstinence in patients with alcohol dependence in a double-blind, placebo-controlled trial: the role of patient motivation. J Psychiatr Res. 2006 Aug;40(5):383-93. Epub 2006 Mar 20. [16546214 ]
  4. Feeney GF, Connor JP, Young RM, Tucker J, McPherson A: Combined acamprosate and naltrexone, with cognitive behavioural therapy is superior to either medication alone for alcohol abstinence: a single centres' experience with pharmacotherapy. Alcohol Alcohol. 2006 May-Jun;41(3):321-7. Epub 2006 Feb 8. [16467406 ]
  5. Tsai G, Coyle JT: The role of glutamatergic neurotransmission in the pathophysiology of alcoholism. Annu Rev Med. 1998;49:173-84. [9509257 ]
  6. Wilde MI, Wagstaff AJ: Acamprosate. A review of its pharmacology and clinical potential in the management of alcohol dependence after detoxification. Drugs. 1997 Jun;53(6):1038-53. [9179530 ]
  7. Drugs.com [Link]
  8. RxList: The Internet Drug Index (2009). [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

1. Glutamate (NMDA) receptor (Protein Group)
General Function:
Voltage-gated cation channel activity
Specific Function:
NMDA receptor subtype of glutamate-gated ion channels with high calcium permeability and voltage-dependent sensitivity to magnesium. Mediated by glycine. This protein plays a key role in synaptic plasticity, synaptogenesis, excitotoxicity, memory acquisition and learning. It mediates neuronal functions in glutamate neurotransmission. Is involved in the cell surface targeting of NMDA receptors (By similarity).
Included Proteins:
Q05586 , Q12879 , Q13224 , Q14957 , O15399 , Q8TCU5 , O60391
References
  1. Mann K, Kiefer F, Spanagel R, Littleton J: Acamprosate: recent findings and future research directions. Alcohol Clin Exp Res. 2008 Jul;32(7):1105-10. doi: 10.1111/j.1530-0277.2008.00690.x. [18540918 ]
  2. Witkiewitz K, Saville K, Hamreus K: Acamprosate for treatment of alcohol dependence: mechanisms, efficacy, and clinical utility. Ther Clin Risk Manag. 2012;8:45-53. doi: 10.2147/TCRM.S23184. Epub 2012 Feb 1. [22346357 ]
General Function:
Glutamate receptor activity
Specific Function:
G-protein coupled receptor for glutamate. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Signaling activates a phosphatidylinositol-calcium second messenger system. May participate in the central action of glutamate in the CNS, such as long-term potentiation in the hippocampus and long-term depression in the cerebellum.
Gene Name:
GRM1
Uniprot ID:
Q13255
Molecular Weight:
132355.855 Da
References
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [17139284 ]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [17016423 ]
General Function:
Group ii metabotropic glutamate receptor activity
Specific Function:
G-protein coupled receptor for glutamate. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Signaling inhibits adenylate cyclase activity.
Gene Name:
GRM3
Uniprot ID:
Q14832
Molecular Weight:
98878.05 Da
References
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [17139284 ]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [17016423 ]
4. GABA-A receptor (anion channel) (Protein Group)
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Included Proteins:
P14867 , P47869 , P34903 , P48169 , P31644 , Q16445 , P18505 , P47870 , P28472 , O14764 , P78334 , Q8N1C3 , P18507 , Q99928 , O00591 , Q9UN88
References
  1. Williams SH: Medications for treating alcohol dependence. Am Fam Physician. 2005 Nov 1;72(9):1775-80. [16300039 ]
General Function:
Protein phosphatase 2a binding
Specific Function:
NMDA receptor subtype of glutamate-gated ion channels with reduced single-channel conductance, low calcium permeability and low voltage-dependent sensitivity to magnesium. Mediated by glycine. May play a role in the development of dendritic spines. May play a role in PPP2CB-NMDAR mediated signaling mechanism (By similarity).
Gene Name:
GRIN3A
Uniprot ID:
Q8TCU5
Molecular Weight:
125464.07 Da
References
  1. Smothers CT, Woodward JJ: Pharmacological characterization of glycine-activated currents in HEK 293 cells expressing N-methyl-D-aspartate NR1 and NR3 subunits. J Pharmacol Exp Ther. 2007 Aug;322(2):739-48. Epub 2007 May 14. [17502428 ]
General Function:
Group ii metabotropic glutamate receptor activity
Specific Function:
G-protein coupled receptor for glutamate. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling inhibits adenylate cyclase activity. May mediate suppression of neurotransmission or may be involved in synaptogenesis or synaptic stabilization.
Gene Name:
GRM2
Uniprot ID:
Q14416
Molecular Weight:
95566.715 Da
References
  1. Heilig M, Egli M: Pharmacological treatment of alcohol dependence: target symptoms and target mechanisms. Pharmacol Ther. 2006 Sep;111(3):855-76. Epub 2006 Mar 20. [16545872 ]
General Function:
Glutamate receptor activity
Specific Function:
G-protein coupled receptor for glutamate. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Signaling activates a phosphatidylinositol-calcium second messenger system and generates a calcium-activated chloride current. Plays an important role in the regulation of synaptic plasticity and the modulation of the neural network activity.
Gene Name:
GRM5
Uniprot ID:
P41594
Molecular Weight:
132467.635 Da
References
  1. De Witte P, Littleton J, Parot P, Koob G: Neuroprotective and abstinence-promoting effects of acamprosate: elucidating the mechanism of action. CNS Drugs. 2005;19(6):517-37. [15963001 ]