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Technical details about Eslicarbazepine Acetate, learn more about the structure, uses, toxicity, action, side effects and more

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2D Structure
Also known as: 236395-14-5, Bia 2-093, Zebinix, Exalief, Aptiom, Stedesa
Molecular Formula
C17H16N2O3
Molecular Weight
296.32  g/mol
InChI Key
QIALRBLEEWJACW-INIZCTEOSA-N
FDA UNII
BEA68ZVB2K

Eslicarbazepine acetate (ESL) is an anticonvulsant medication approved for use in Europe, the United States and Canada as an adjunctive therapy for partial-onset seizures that are not adequately controlled with conventional therapy. Eslicarbazepine acetate is a prodrug that is rapidly converted to eslicarbazepine, the primary active metabolite in the body. Eslicarbazepine's mechanism of action is not well understood, but it is known that it does exert anticonvulsant activity by inhibiting repeated neuronal firing and stabilizing the inactivated state of voltage-gated sodium channels, thus preventing their return to the activated state during which seizure activity can occur. Eslicarbazepine acetate is marketed as Aptiom in North America and Zebinix or Exalief in Europe. It is available in 200, 400, 600, or 800mg tablets that are taken once daily, with or without food. Eslicarbazepine acetate is associated with numerous side effects including dizziness, drowsiness, nausea, vomiting, diarrhea, headache, aphasia, lack of concentration, psychomotor retardation, speech disturbances, ataxia, depression and hyponatremia. It is recommended that patients taking eslicarbazepine acetate be monitored for suicidality.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
[(5S)-11-carbamoyl-5,6-dihydrobenzo[b][1]benzazepin-5-yl] acetate
2.1.2 InChI
InChI=1S/C17H16N2O3/c1-11(20)22-16-10-12-6-2-4-8-14(12)19(17(18)21)15-9-5-3-7-13(15)16/h2-9,16H,10H2,1H3,(H2,18,21)/t16-/m0/s1
2.1.3 InChI Key
QIALRBLEEWJACW-INIZCTEOSA-N
2.1.4 Canonical SMILES
CC(=O)OC1CC2=CC=CC=C2N(C3=CC=CC=C13)C(=O)N
2.1.5 Isomeric SMILES
CC(=O)O[C@H]1CC2=CC=CC=C2N(C3=CC=CC=C13)C(=O)N
2.2 Other Identifiers
2.2.1 UNII
BEA68ZVB2K
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 10-acetoxy-10,11-dihydro-5h-dibenz(b,f)azepine-5-carboxamide

2. Aptiom

3. Bia 2-093

4. Bia-2-093

5. Zebinix

2.3.2 Depositor-Supplied Synonyms

1. 236395-14-5

2. Bia 2-093

3. Zebinix

4. Exalief

5. Aptiom

6. Stedesa

7. Erelib

8. Pazzul

9. Bia-2-093

10. Eslicarbazepine (acetate)

11. (s)-5-carbamoyl-10,11-dihydro-5h-dibenzo[b,f]azepin-10-yl Acetate

12. Sep-0002093

13. Eslicarbazepine Acetate [usan]

14. Bea68zvb2k

15. Chembl87992

16. Sep - 0002093

17. Chebi:87016

18. [(5s)-11-carbamoyl-5,6-dihydrobenzo[b][1]benzazepin-5-yl] Acetate

19. Bia-2093

20. Exelief

21. (s)-(-)-10-acetoxy-10,11-dihydro-5h-dibenz[b,f]azepine-5-carboxamide

22. S-(-)-10-acetoxy-10,11-dihydro-5h-dibenz[b,f]azepine-5-carboxamide

23. Eslicarbazepine Acetate (usan)

24. (10s)-10-acetoxy-10,11-dihydro-5h-dibenz[b,f]azepine-5-carboxamide

25. (10s)-5-carbamoyl-10,11-dihydro-5h-dibenzo[b,f]azepin-10-yl Acetate

26. (s)-10-acetoxy- 10,11-dihydro- 5h-dibenz[b,f]azepine- 5-carboxamide

27. 5h-dibenz[b,f]azepine-5-carboxamide, 10-(acetyloxy)-10,11-dihydro-, (10s)-

28. Sep 0002093

29. Unii-bea68zvb2k

30. (10s)-5-carbamoyl-10,11-dihydro-5h-dibenzo(b,f)azepin-10-yl Acetate

31. 5h-dibenz(b,f)azepine-5-carboxamide, 10-(acetyloxy)-10,11-dihydro-, (10s)-

32. Bia 2093

33. Zebinix (tn)

34. Aptiom (tn)

35. Eslicarbazepine-acetate

36. Eslicarbazapine Acetate

37. Schembl250594

38. Zinc7295

39. Dtxsid90178308

40. Hms3263m06

41. Hms3885n14

42. Hy-b0703

43. Eslicarbazepine Acetate [mi]

44. Tox21_501102

45. Bdbm50240669

46. Mfcd06798333

47. S4657

48. Akos005145781

49. Ccg-222406

50. Db09119

51. Eslicarbazepine Acetate [mart.]

52. Eslicarbazepine Acetate [vandf]

53. Lp01102

54. Sdccgsbi-0633789.p001

55. Eslicarbazepine Acetate [who-dd]

56. Ncgc00165752-01

57. Ncgc00165752-02

58. Ncgc00165752-04

59. Ncgc00165752-06

60. Ncgc00261787-01

61. Ac-31734

62. As-14058

63. Eslicarbazepine Acetate [ema Epar]

64. E1046

65. Eslicarbazepine Acetate [orange Book]

66. Bia 2-093, >=98% (hplc), Solid

67. D09612

68. H11471

69. Ar-270/43507894

70. Q410273

71. J-015175

72. (s)-10-acetoxy-10,11-dihydro-5hdibenz( B,f)azepine-5-carboxamide

73. 10s)-5-carbamoyl-10,11-dihydro-5h-dibenzo[b,f]azepin-10-yl Acetate

74. 5-(aminocarbonyl)-10,11-dihydro-5h-dibenzo[b,f]azepin-10-yl Acetate

75. 5h-dibenz9b,f)azepine-5-carboxamide, 10-(acetyloxy)-10,11-dihydro-, (10s)-

76. Acetic Acid (s)-5-carbamoyl-10,11-dihydro-5h-dibenzo[b,f]azepin-10-yl Ester

77. Acetic Acid 5-carbamoyl-10,11-dihydro-5h-dibenzo[b,f]azepin-10(s)-yl Ester

2.4 Create Date
2005-08-09
3 Chemical and Physical Properties
Molecular Weight 296.32 g/mol
Molecular Formula C17H16N2O3
XLogP32
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count2
Exact Mass296.11609238 g/mol
Monoisotopic Mass296.11609238 g/mol
Topological Polar Surface Area72.6 Ų
Heavy Atom Count22
Formal Charge0
Complexity440
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Information
1 of 2  
Drug NameAptiom
PubMed HealthEslicarbazepine (By mouth)
Drug ClassesAnticonvulsant, Central Nervous System Agent
Drug LabelThe chemical name of APTIOM (eslicarbazepine acetate) is (S)-10-Acetoxy-10,11-dihydro-5H-dibenz[b,f]azepine-5-carboxamide. APTIOM is a dibenz[b,f]azepine-5-carboxamide derivative. Its molecular formula is C17H16N2O3 and its molecular weight is 296.32...
Active IngredientEslicarbazepine acetate
Dosage FormTablet
RouteOral
Strength200mg; 600mg; 800mg; 400mg
Market StatusPrescription
CompanySunovion Pharms

2 of 2  
Drug NameAptiom
PubMed HealthEslicarbazepine (By mouth)
Drug ClassesAnticonvulsant, Central Nervous System Agent
Drug LabelThe chemical name of APTIOM (eslicarbazepine acetate) is (S)-10-Acetoxy-10,11-dihydro-5H-dibenz[b,f]azepine-5-carboxamide. APTIOM is a dibenz[b,f]azepine-5-carboxamide derivative. Its molecular formula is C17H16N2O3 and its molecular weight is 296.32...
Active IngredientEslicarbazepine acetate
Dosage FormTablet
RouteOral
Strength200mg; 600mg; 800mg; 400mg
Market StatusPrescription
CompanySunovion Pharms

4.2 Drug Indication

Eslicarbazepine acetate is indicated as adjunctive therapy in the treatment of partial-onset seizures that are not adequately controlled with conventional therapy in epileptic patients.


FDA Label


Zebinix is indicated as adjunctive therapy in adults, adolescents and children aged above 6 years, with partial-onset seizures with or without secondary generalisation.


Exalief is indicated as adjunctive therapy in adults with partial-onset seizures with or without secondary generalisation.


Treatment of epilepsy with partial-onset seizures


5 Pharmacology and Biochemistry
5.1 Pharmacology

Eslicarbazepine acetate is associated with a dose- and concentration-dependant increase in heart rate and prolongation of PR interval.


5.2 MeSH Pharmacological Classification

Anticonvulsants

Drugs used to prevent SEIZURES or reduce their severity. (See all compounds classified as Anticonvulsants.)


Voltage-Gated Sodium Channel Blockers

A class of drugs that inhibit the activation of VOLTAGE-GATED SODIUM CHANNELS. (See all compounds classified as Voltage-Gated Sodium Channel Blockers.)


5.3 FDA Pharmacological Classification
5.3.1 Pharmacological Classes
Cytochrome P450 3A4 Inducers [MoA]; Decreased Central Nervous System Disorganized Electrical Activity [PE]; Cytochrome P450 2C19 Inhibitors [MoA]
5.4 ATC Code

N03AF04


N03AF04


5.5 Absorption, Distribution and Excretion

Absorption

Eslicarbazepine active metabolite has a high bioavailability and reaches peak serum concentration 1-4 hours after a given dose. Eslicarbazepine acetate absorption is not affected by food.


Route of Elimination

Eslicarbazepine acetate and its metabolites are eliminated primarily via renal excretion. Eslicarbazepine active metabolite is excreted two-thirds in the unchanged form and one-third as a glucuronide conjugate. This accounts for around 90% of total metabolites excreted, with the remaining 10% being minor metabolites. Renal tubular reabsorption is expected to occur with eslicarbazepine.


Volume of Distribution

The apparent volume of distribution of eslicarbazepine is 61.3 L for a body weight of 70 kg based on population PK analysis.


Clearance

Renal clearance of eslicarbazepine was found to be approximately 20 mL/min in healthy subjects with normal renal function.


5.6 Metabolism/Metabolites

Eslicarbazepine acetate is rapidly and extensively metabolized to its major active metabolite, eslicarbazepine, via hydrolytic first-pass metabolism. Eslicarbazepine corresponds to about 92% of systemic exposure. Minor active metabolites (R)-licarbazepine and oxcarbazepine consist of <5% of systemic exposure. Active metabolites are then metabolized to inactive glucuronides that correspond to about 3% of systemic exposure. Eslicarbazepine had a moderate inhibitory effect on CYP2C19 and a mild activation of UGT1A1-mediated glucuronidation when studied in human hepatic microsomes. It has been shown to induce CYP3A4 enzymes in vivo.


5.7 Biological Half-Life

The apparent plasma half-life of eslicarbazepine is 10-20 hours in healthy subjects and 13-20 hours in epilepsy patients. Steady-state plasma concentrations are attained after 4 to 5 days of once daily dosing.


5.8 Mechanism of Action

Eslicarbazepine acetate is converted to the active metabolite eslicarbazepine which carries out its anticonvulsant activity. The exact mechanism of action is unknown, but it is thought to involve the inhibition of voltage-gated sodium channels. In in vitro electrophysiological studies, eslicarbazepine was shown to inhibit repeated neuronal firing by stabilizing the inactivated state of voltage-gated sodium channels and preventing their return to the activated state. In vitro studies also showed eslicarbazepine inhibiting T-type calcium channels, which likely also has a role in anticonvulsant activity.


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