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2D Structure
Also known as: 71320-77-9, Aurorix, Moclobemid, Manerix, Moclamine, 4-chloro-n-(2-morpholinoethyl)benzamide
Molecular Formula
C13H17ClN2O2
Molecular Weight
268.74  g/mol
InChI Key
YHXISWVBGDMDLQ-UHFFFAOYSA-N
FDA UNII
PJ0Y7AZB63

A reversible inhibitor of monoamine oxidase type A; (RIMA); (see MONOAMINE OXIDASE INHIBITORS) that has antidepressive properties.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
4-chloro-N-(2-morpholin-4-ylethyl)benzamide
2.1.2 InChI
InChI=1S/C13H17ClN2O2/c14-12-3-1-11(2-4-12)13(17)15-5-6-16-7-9-18-10-8-16/h1-4H,5-10H2,(H,15,17)
2.1.3 InChI Key
YHXISWVBGDMDLQ-UHFFFAOYSA-N
2.1.4 Canonical SMILES
C1COCCN1CCNC(=O)C2=CC=C(C=C2)Cl
2.2 Other Identifiers
2.2.1 UNII
PJ0Y7AZB63
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Apo Moclobemide

2. Apo-moclobemide

3. Arima

4. Aurorex

5. Aurorix

6. Azu, Moclobemid

7. Chem Mart Moclobemide

8. Dbl Moclobemide

9. Deprenorm

10. Feraken

11. Genrx Moclobemide

12. Healthsense Moclobemide

13. Manerix

14. Moclamine

15. Moclix

16. Moclobamide

17. Moclobemid 1a Pharma

18. Moclobemid Azu

19. Moclobemid Puren

20. Moclobemid Ratiopharm

21. Moclobemid Stada

22. Moclobemid Von Ct

23. Moclobemid-1a Pharma

24. Moclobemid-puren

25. Moclobemid-ratiopharm

26. Moclobemid1a Pharma

27. Moclobemide, Chem Mart

28. Moclobemide, Dbl

29. Moclobemide, Genrx

30. Moclobemide, Healthsense

31. Moclobeta

32. Moclodura

33. Moclonorm

34. Novo Moclobemide

35. Novo-moclobemide

36. Novomoclobemide

37. Nu Moclobemide

38. Nu-moclobemide

39. Numoclobemide

40. Pms Moclobemide

41. Pms-moclobemide

42. Rimoc

43. Ro 11 1163

44. Ro 11-1163

45. Ro-11-1163

46. Stada, Moclobemid

47. Terry White Chemists Moclobemide

48. Von Ct, Moclobemid

2.3.2 Depositor-Supplied Synonyms

1. 71320-77-9

2. Aurorix

3. Moclobemid

4. Manerix

5. Moclamine

6. 4-chloro-n-(2-morpholinoethyl)benzamide

7. Moclaime

8. Moclobemidum

9. Moclamide

10. Moclobemida

11. P-chloro-n-(2-morpholinoethyl)benzamide

12. Moclobemidum [inn-latin]

13. Moclobemida [inn-spanish]

14. 4-chloro-n-[2-(morpholin-4-yl)ethyl]benzamide

15. 4-chlor-n-(2-morpholinoethyl)benzamid

16. Gnf-pf-695

17. 4-chloro-n-(2-morpholin-4-ylethyl)benzamide

18. 4-chloro-n-(2-(4-morpholinyl)ethyl)benzamide

19. 4-chloro-n-[2-(4-morpholinyl)ethyl]benzamide

20. Ro 11-1163

21. 4-chloro-n-(2-morpholin-4-yl-ethyl)-benzamide

22. Moclobemide (ro 111163)

23. Ro 11-1163/000

24. Ro111163

25. Benzamide, 4-chloro-n-(2-(4-morpholinyl)ethyl)-

26. Benzamide, 4-chloro-n-[2-(4-morpholinyl)ethyl]-

27. Pj0y7azb63

28. Chembl86304

29. Mls000070549

30. Chebi:83531

31. Ncgc00027930-02

32. Ncgc00027930-04

33. Smr000012114

34. Ro-111163000

35. Ro-11-1163/000

36. Dsstox_cid_20554

37. Dsstox_rid_79506

38. Dsstox_gsid_40554

39. Moclobemide [usan:ban:inn]

40. Moclobemide [usan:inn:ban]

41. Auromid

42. Aurorix (tn)

43. Cas-71320-77-9

44. Ro-11-1163

45. Hsdb 7180

46. Sr-01000357772

47. Cbmicro_048319

48. Moclobemide (usan/inn)

49. Unii-pj0y7azb63

50. Brn 0530974

51. Moclobemide- Bio-x

52. Mfcd00865388

53. Moclamine (salt/mix)

54. Opera_id_225

55. Moclobemide [mi]

56. Moclobemide [inn]

57. Moclobemide [hsdb]

58. Moclobemide [usan]

59. Moclobemide [mart.]

60. Oprea1_256739

61. Oprea1_270122

62. Schembl49708

63. Moclobemide [who-dd]

64. Mls000759438

65. Mls001240195

66. Mls001424077

67. Gtpl7428

68. Benzamide,4-chloro-n-[2-(4-morpholinyl)ethyl]-

69. Dtxsid9040554

70. Bdbm15613

71. Hms2051a16

72. Hms2096g07

73. Hms2232b20

74. Hms3262f09

75. Hms3371a01

76. Hms3393a16

77. Hms3657k05

78. Hms3713g07

79. Hms3885a15

80. Amy32534

81. Bcp15783

82. Hy-b0534

83. Moclobemide 1.0 Mg/ml In Methanol

84. Tox21_110971

85. Tox21_113614

86. Tox21_500824

87. S3212

88. Stk222240

89. Zinc19606670

90. Akos003270184

91. Moclobemide, >=98% (hplc), Solid

92. Tox21_110971_1

93. Ccg-100879

94. Db01171

95. Lp00824

96. Nc00129

97. Sdccgsbi-0048213.p003

98. Ncgc00027930-03

99. Ncgc00027930-05

100. Ncgc00027930-07

101. Ncgc00027930-16

102. Ncgc00261509-01

103. Ac-12467

104. Ac-35244

105. Bm164599

106. P-chloro-n-(2-morpholinoethyl)-benzamide

107. Bim-0048213.p001

108. Ft-0618228

109. M2733

110. Sw197509-3

111. D02561

112. Ab00400932_12

113. 320m779

114. A837152

115. Q421934

116. 4-chloro-n-(2-morpholinoethyl)benzamide;moclobemide

117. Sr-01000357772-1

118. Sr-01000357772-4

119. Z32409934

120. Ro11-1163; Ro 11-1163; Ro111163; Ro-111163; Ro 111163

121. 108375-13-9

2.4 Create Date
2005-03-25
3 Chemical and Physical Properties
Molecular Weight 268.74 g/mol
Molecular Formula C13H17ClN2O2
XLogP31.5
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count4
Exact Mass268.0978555 g/mol
Monoisotopic Mass268.0978555 g/mol
Topological Polar Surface Area41.6 Ų
Heavy Atom Count18
Formal Charge0
Complexity262
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Therapeutic Uses

Moclobemide is indicated for the relief of symptoms of depressive illness. /Included in US product labeling/

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1931


Antidepressants appear to be useful in the treatment of pain disorders.

PMID:14608245 Pirildar S et al; Psychopharmacol Bull 37 (3): 127-34 (2003)


EXPTL Therapy: This randomized, prospective, double-blind study evaluated the efficacy and tolerability of moclobemide, a reversible, selective inhibitor of monoamine oxidase-A, in reducing the frequency and severity of hot flashes. Thirty postmenopausal women were enrolled, and 28 were allocated to 5 weeks of treatment with moclobemide 150 mg (group 1, n = 10), moclobemide 300 mg (group 2, n = 11), or placebo (group 3, n = 9). Data on hot flashes were recorded in a daily diary. Mean reductions in the hot flash severity score were 24.4% in the placebo group, 69.8% in group 1, and 35.0% in group 2.

PMID:12665046 Tarim E et al; Adv Ther 19 (6): 258-65 (2002)


EXPTL Therapy: In a double-blind placebo controlled study, 12 male outpatients suffering from psychogenic erectile dysfunction without any other psychiatric disorder were investigated. Based on comprehensive diagnosis before the beginning of the study, organic factors relevant for sexual function were excluded. The treatment period was 8 weeks. Half the patients received 450 mg moclobemide during the first week, and 600 mg afterwards; the others received placebo. Apart from assessment of erectile function by means of the Clinical Global Impression (CGI) scale, nocturnal erections were measured under polysomnographic control at baseline and at the end of the treatment period. The evaluation of the CGI scale revealed a clearly stronger improvement under moclobemide compared to placebo during the study period. The therapeutic efficacy found on the subjective level had no clear correlate on the neurophysiological level. No alterations of nocturnal erectile parameters were obvious under treatment; neither were clinically relevant alterations found regarding sleep EEG parameters. The medication was well tolerated without serious adverse events. The findings support the hypothesis that moclobemide has a specific effect on /psychogenic/ erectile dysfunction.

PMID:11465638 Mann K et al; Psychopharmacology (Berl) 156 (1): 86-91 (2001)


Moclobemide represents a new class of drug, the so-called RIMA compounds--reversible inhibitors of MAO-A. Unlike classical monoamine oxidase (MAO) inhibitors, moclobemide is devoid of hepatotoxicity and has only a slight potentiating effect on the hypertensive action of tyramine; treatment does not require a tyramine-restricted diet. Studies comparing moclobemide with tricyclic antidepressants (TCAs) indicate that moclobemide is significantly better tolerated than TCAs and slightly less well tolerated than placebo.

Amrein R et al; Can J Psychiatry 37 (Suppl 1): 7-11 (1992)


4.2 Drug Warning

Safety aspects were compared in 2203 patients given moclobemide and 1214 who received other antidepressants or placebo. A total of 2294 adverse events were reported by patients on moclobemide, mainly subjective symptoms (28.6%). Adverse events such as dry mouth, tremor, sweating, dizziness and constipation occurred much more frequently among 681 patients treated with various tricyclic antidepressants than in the 694 moclobemide patients with whom they were compared.

PMID:2248078 Moll E, Hetzel W; Acta Psychiatr Scand Suppl 360: 69-70 (1990)


Because moclobemide is partially metabolized by the polymorphic isozymes CYP2C19 and CYP2D6, plasma concentrations of this medication may be affected in patients with genetically or drug-induced poor metabolism. Approximately 2% of whites and 15% of Asians can be genetically phenotyped as slow metabolizers with respect to oxidative hepatic metabolism. In slow metabolizer subjects, the area under the concentration-time curve (AUC) was found to be 1.5 times greater than in extensive metabolizer subjects for the same dose of moclobemide. This increase is within the normal range of variation (up to two-fold) typically seen in patients.

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1932


Concurrent consumption of tyramine-rich food with irreversible monoamine inhibitors may cause sudden and severe hypertensive reactions; since moclobemide is a reversible inhibitor of MAO-A (RIMA), dietary restriction may not be necessary; consumption of up to 100 mg of tyramine with 600 mg of moclobemide per day is not expected to cause problems; potential hypertensive reactions may be minimized if moclobemide is taken after meals.

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1933


Moclobemide had inconsistent effects on the blood pressure of hypertensive patients during clinical trials; careful monitoring is important, especially during initial titration.

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1933


For more Drug Warnings (Complete) data for MOCLOBEMIDE (12 total), please visit the HSDB record page.


4.3 Drug Indication

For the treatment of major depressive disorder and bipolar disorder.


5 Pharmacology and Biochemistry
5.1 Pharmacology

A selective, reversible inhibitor of monoamine oxidase (MAO) which increases the. Besides its presence in sympathetic nerves, there is an abundant evidence that MAO-A is localized in noradrenergic neurons in the locus coeruleus and MAO-B is closely associated with serotonergic neurons of the raphe nucleus.


5.2 MeSH Pharmacological Classification

Antidepressive Agents

Mood-stimulating drugs used primarily in the treatment of affective disorders and related conditions. Several MONOAMINE OXIDASE INHIBITORS are useful as antidepressants apparently as a long-term consequence of their modulation of catecholamine levels. The tricyclic compounds useful as antidepressive agents (ANTIDEPRESSIVE AGENTS, TRICYCLIC) also appear to act through brain catecholamine systems. A third group (ANTIDEPRESSIVE AGENTS, SECOND-GENERATION) is a diverse group of drugs including some that act specifically on serotonergic systems. (See all compounds classified as Antidepressive Agents.)


Monoamine Oxidase Inhibitors

A chemically heterogeneous group of drugs that have in common the ability to block oxidative deamination of naturally occurring monoamines. (From Gilman, et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed, p414) (See all compounds classified as Monoamine Oxidase Inhibitors.)


5.3 ATC Code

N06AG02

S76 | LUXPHARMA | Pharmaceuticals Marketed in Luxembourg | Pharmaceuticals marketed in Luxembourg, as published by d'Gesondheetskeess (CNS, la caisse nationale de sante, www.cns.lu), mapped by name to structures using CompTox by R. Singh et al. (in prep.). List downloaded from https://cns.public.lu/en/legislations/textes-coordonnes/liste-med-comm.html. Dataset DOI:10.5281/zenodo.4587355


N - Nervous system

N06 - Psychoanaleptics

N06A - Antidepressants

N06AG - Monoamine oxidase a inhibitors

N06AG02 - Moclobemide


5.4 Absorption, Distribution and Excretion

Absorption

Well absorbed from the gastrointestinal tract (> 95%). The presence of food reduces the rate but not the extent of absorption. Hepatic first-pass metabolism reduces bioavailability to about 56% following administration of one dose, but increases to 90% with steady-state dosing as a result of saturation of the first pass effect. Peak plasma concentrations are reached within 0.3 - 1 hours following oral administration with a terminal half-life of 1.6h.


Route of Elimination

Moclobemide is almost completely renally excreted.


Volume of Distribution

1-1.5 L/Kg


Clearance

Clearance of 30-78 L/h, mainly excreted in urine.


Moclobemide is readily absorbed (>95%) through the gastrointestinal tract. Within 1 to 2 hours of oral use, a peak plasma level of about 1 ug/mL is reached. It is protein bound to the extent of 50%.

Ellenhorn, M.J., S. Schonwald, G. Ordog, J. Wasserberger. Ellenhorn's Medical Toxicology: Diagnosis and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams and Wilkins, 1997., p. 656


Small quantities of moclobemide are distributed into human breast milk.

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1932


Well absorbed from the gastrointestinal tract. The presence of food reduces the rate but not the extent of absorption. Absolute bioavailability ranges from approximately 55% following administration of single doses of moclobemide to 90% following multiple dosing, due to the hepatic first pass effect.

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1932


Elimination: Renal, as metabolites. Less than 1% of an administered dose of moclobemide is eliminated unchanged.

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1932


The excretion of moclobemide and its major metabolites in human breast milk was studied in 6 lactating women (aged 24-36 yr) who received a single dose of 300 mg moclobemide in oral tablet form. Moclobemide and /3-keto-meclobemide/ (Ro-12-8095) were measured in milk and plasma samples. /Moclobemide-N'-oxide/ (Ro-12-5637) was only detected in plasma. The concentrations of moclobemide and Ro-12-8095 in milk were highest at 3 hr after moclobemide administration and the drug and metabolite were not detectable after 12 hr. The percentages of the dose excreted as moclobemide and Ro-12-8095 were 0.057+/-0.02% and 0.031+/-0.011%, respectively.

PMID:2297459 Full text: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1380057 Pons G et al; Br J Clin Pharmacol 29 (Jan): 27-31(1990)


5.5 Metabolism/Metabolites

Moclobemide is almost completely metabolized in the liver by Cytochrome P450 2C19 and 2D6. Moclobemide is a substrate of CYP2C19. Although it acts as an inhibitor of CYP1A2, CYP2C19, and CYP2D6.


The role of mephenytoin oxidation polymorphism in the metabolism of moclobemide was studied in 15 healthy subjects (ages 23-27 yr), including 7 poor metabolizers and 8 extensive metabolizers of S-mephenytoin, who received a single dose of 300 mg moclobemide and multiple doses of 600 mg/day moclobemide. Poor metabolizers of S-mephenytoin had lower moclobemide clearance (median single dose 16.1 vs 43.2 L/hr) and longer half-life (median single dose 4 vs 1.8 hr) compared with extensive metabolizers. Plasma levels of a metabolite formed by C-hydroxylation were lower in poor metabolizers. Moclobemide thus partially underwent oxidative metabolism via polymorphic CYP2C19. Changes in metabolic indexes were compatible with reversible inhibition of oxidation by way of CYP2C19, CYP2D6, and CYP1A2. It was concluded that there is a cosegregation between moclobemide clearance and mephenytoin oxidation polymorphism.

PMID:7781267 Gram LF et al; Clin Pharmacol Ther 57 (Jun): 670-7 (1995)


Moclobemide appears to be eliminated (after first-pass hepatic metabolism) by first-order kinetics, resulting in urinary excretion of the monoamine metabolites homovanillic acid (HAV), dihydroxyphenylacetic acid (DOPAC), 3-methoxy-4-hydroxy-phenyl glycol (DOPEG), and 5-hydroxyindoleacetic acid (5-HIAA).

Ellenhorn, M.J., S. Schonwald, G. Ordog, J. Wasserberger. Ellenhorn's Medical Toxicology: Diagnosis and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams and Wilkins, 1997., p. 656


5.6 Biological Half-Life

1-2 hours (4 hours in cirrhotic patients); metabolites are renally excreted


Elimination: 1.5 hours (4 hours in cirrhotic patients).

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1932


5.7 Mechanism of Action

The mechanism of action of moclobemide involves the selective, reversible inhibition of MAO-A. This inhibition leads to a decrease in the metabolism and destruction of monoamines in the neurotransmitters. This results in an increase in the monoamines, relieving depressive symptoms.


The exact mechanism of antidepressant effect is unknown; however, it is established that the activity of the enzyme monoamine oxidase (MAO) is inhibited. MAO subtypes A and B are involved in the metabolism of serotonin and catecholamine neurotransmitters, such as norepinephrine and dopamine. Moclobemide, as a selective MAO inhibitor, preferentially inhibits monoamine oxidase-A (MAO-A) and, to a lesser extent, monoamine oxidase-B (MAO-B) (approximately 80% inhibition of MAO-A and 20% to 30% inhibition of MAO-B, 300 mg). Reduced MAO activity results in an increased concentration of serotonin and catecholamine neurotransmitters in storage sites throughout the central nervous system (CNS) and sympathetic nervous system. This increased availability of one or more monoamines has been thought to be the basis for the antidepressant activity of MAO inhibitors. MAO-A inhibition by moclobemide is short-acting (maximum 24 hours) and reversible (transient binding to MAO-A). In contrast, some other MAO inhibitors (phenelzine, tranylcypromine) are non-selective, long-acting, and irreversible in their binding to MAO-A and MAO-B.

MICROMEDEX Thomson Health Care. USPDI - Drug Information for the Health Care Professional. 23rd ed. Volume 1. MICROMEDEX Thomson Health Care, Greenwood Village, CO. 2003. Content Reviewed and Approved by the U.S. Pharmacopeial Convention, Inc., p. 1931