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    Hydroxyzine Pamoate

    ACTIVE PHARMA INGREDIENTS

    FINISHED DOSAGE FORMULATIONS

    DRUG PRODUCT COMPOSITIONS

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    2D Structure
    Also known as: 10246-75-0, Hydroxyzine embonate, Bobsule, Hydroxyzine (pamoate), Equipose, Hydroxyzine pamoate salt
    Molecular Formula
    C44H43ClN2O8
    Molecular Weight
    763.3  g/mol
    InChI Key
    ASDOKGIIKXGMNB-UHFFFAOYSA-N
    FDA UNII
    M20215MUFR
    A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.
    1 2D Structure

    2D Structure

    2 Identification
    2.1 Computed Descriptors
    2.1.1 IUPAC Name
    4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid;2-[2-[4-[(4-chlorophenyl)-phenylmethyl]piperazin-1-yl]ethoxy]ethanol
    2.1.2 InChI
    InChI=1S/C23H16O6.C21H27ClN2O2/c24-20-16(14-7-3-1-5-12(14)9-18(20)22(26)27)11-17-15-8-4-2-6-13(15)10-19(21(17)25)23(28)29;22-20-8-6-19(7-9-20)21(18-4-2-1-3-5-18)24-12-10-23(11-13-24)14-16-26-17-15-25/h1-10,24-25H,11H2,(H,26,27)(H,28,29);1-9,21,25H,10-17H2
    2.1.3 InChI Key
    ASDOKGIIKXGMNB-UHFFFAOYSA-N
    2.1.4 Canonical SMILES
    C1CN(CCN1CCOCCO)C(C2=CC=CC=C2)C3=CC=C(C=C3)Cl.C1=CC=C2C(=C1)C=C(C(=C2CC3=C(C(=CC4=CC=CC=C43)C(=O)O)O)O)C(=O)O
    2.2 Other Identifiers
    2.2.1 UNII
    M20215MUFR
    2.3 Synonyms
    2.3.1 MeSH Synonyms

    1. 2-(2-(4-((4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)ethanol

    2. Atarax

    3. Durrax

    4. Hydroxyzine

    5. Hydroxyzine Dihydrochloride

    6. Hydroxyzine Hydrochloride

    7. Orgatrax

    8. Pamoate, Hydroxyzine

    9. Vistaril

    2.3.2 Depositor-Supplied Synonyms

    1. 10246-75-0

    2. Hydroxyzine Embonate

    3. Bobsule

    4. Hydroxyzine (pamoate)

    5. Equipose

    6. Hydroxyzine Pamoate Salt

    7. Hy-pam

    8. Nsc-757063

    9. Mls000028605

    10. M20215mufr

    11. Masmoran

    12. Paxisitil

    13. Smr000058728

    14. Atarax P

    15. 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic Acid;2-[2-[4-[(4-chlorophenyl)-phenylmethyl]piperazin-1-yl]ethoxy]ethanol

    16. Sr-01000003149

    17. Einecs 233-582-1

    18. Unii-m20215mufr

    19. Hydroxyzine Pamoate [usp:jan]

    20. Atarax-p (tn)

    21. Spectrum_000911

    22. Vistaril Pamoate (tn)

    23. Spectrum2_001000

    24. Spectrum3_000463

    25. Spectrum4_000013

    26. Spectrum5_000838

    27. Hyydroxyzine Pamoate

    28. 6-ethylthiomorpholin-3-one

    29. Schembl41333

    30. Bspbio_002166

    31. Kbiogr_000385

    32. Kbioss_001391

    33. 2-(2-(4-(p-chloro-alpha-phenylbenzyl)-1-piperazinyl)ethoxy)ethanol 4,4'-methylenebis(3-hydroxy-2-naphthoate) (1:1)

    34. Divk1c_000503

    35. Spectrum1500345

    36. Spbio_001099

    37. Chembl1200467

    38. Hydroxyzine Pamoate [mi]

    39. Hms501j05

    40. Kbio1_000503

    41. Kbio2_001391

    42. Kbio2_003959

    43. Kbio2_006527

    44. Kbio3_001386

    45. Dtxsid00907580

    46. Hydroxyzine Pamoate [jan]

    47. Hydroxyzine Pamoate (jp17/usp)

    48. Ninds_000503

    49. Hms1920f11

    50. Hms2091l19

    51. Hms2235o19

    52. Hms3886g14

    53. Pharmakon1600-01500345

    54. Hydroxyzine Pamoate [vandf]

    55. Hy-b0895

    56. Ccg-40218

    57. Hydroxyzine Embonate [mart.]

    58. Hydroxyzine Pamoate [usp-rs]

    59. Mfcd00058051

    60. Nsc757063

    61. S5649

    62. Hydroxyzine Embonate [who-dd]

    63. Akos015914218

    64. Nsc 757063

    65. Idi1_000503

    66. Hydroxyzine Pamoate [orange Book]

    67. Ncgc00021152-02

    68. Ncgc00021152-03

    69. Ncgc00094698-01

    70. Ncgc00094698-02

    71. (+-)-2-(2-(4-(p-chloro-alpha-phenylbenzyl)-1-piperazinyl)ethoxy)ethanol 4,4'-methylenebis(3-hydroxy-2-naphthoate) (1:1)

    72. Ethanol, 2-(2-(4-((4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)-, (+-)-, Compd. With 4,4'-methylenebis(3-hydroxy-2-naphthalenecarboxylic Acid) (1:1)

    73. Ethanol, 2-(2-(4-((4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)-, Compd. With 4,4'-methylenebis(3-hydroxy-2-naphthalenecarboxylic Acid) (1:1)

    74. Hydroxyzine Pamoate [usp Monograph]

    75. Sbi-0051413.p003

    76. Ft-0697190

    77. Hydroxyzine Pamoate Salt, Analytical Standard

    78. D01096

    79. F15112

    80. J-000695

    81. Sr-01000003149-2

    82. Sr-01000003149-4

    83. Q27114645

    84. Hydroxyzine Pamoate, United States Pharmacopeia (usp) Reference Standard

    85. (+/-)-2-(2-(4-(p-chloro-.alpha.-phenylbenzyl)-1-piperazinyl)ethoxy)ethanol 4,4'-methylenebis(3-hydroxy-2-naphthoate) (1:1)

    86. Ethanol, 2-(2-(4-((4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)-, (+/-)-, Compd. With 4,4'-methylenebis(3-hydroxy-2-naphthalenecarboxylic Acid) (1:1)

    2.4 Create Date
    2005-06-24
    3 Chemical and Physical Properties
    Molecular Weight 763.3 g/mol
    Molecular Formula C44H43ClN2O8
    Hydrogen Bond Donor Count5
    Hydrogen Bond Acceptor Count10
    Rotatable Bond Count12
    Exact Mass762.2707940 g/mol
    Monoisotopic Mass762.2707940 g/mol
    Topological Polar Surface Area151 Ų
    Heavy Atom Count55
    Formal Charge0
    Complexity945
    Isotope Atom Count0
    Defined Atom Stereocenter Count0
    Undefined Atom Stereocenter Count1
    Defined Bond Stereocenter Count0
    Undefined Bond Stereocenter Count0
    Covalently Bonded Unit Count2
    4 Drug and Medication Information
    4.1 Drug Information
    1 of 2  
    Drug NameHydroxyzine pamoate
    PubMed HealthHydroxyzine Pamoate (By mouth)
    Drug ClassesAntianxiety, Antiemetic, Respiratory Agent
    Drug LabelHydroxyzine pamoate is designated chemically as 1-(p-chlorobenzhydryl) 4-[2-(2-hydroxyethoxy) ethyl] diethylenediamine salt of 1,1'-methylene bis (2 hydroxy-3-naphthalene carboxylic acid). It has the following structural formula: C21H27ClN2O2C23H1...
    Active IngredientHydroxyzine pamoate
    Dosage FormCapsule
    RouteOral
    Strengtheq 50mg hydrochloride; eq 50mg hcl; eq 100mg hcl; eq 25mg hcl; eq 25mg hydrochloride
    Market StatusPrescription
    CompanySandoz; Watson Labs; Emcure Pharms Usa; Barr

    2 of 2  
    Drug NameHydroxyzine pamoate
    PubMed HealthHydroxyzine Pamoate (By mouth)
    Drug ClassesAntianxiety, Antiemetic, Respiratory Agent
    Drug LabelHydroxyzine pamoate is designated chemically as 1-(p-chlorobenzhydryl) 4-[2-(2-hydroxyethoxy) ethyl] diethylenediamine salt of 1,1'-methylene bis (2 hydroxy-3-naphthalene carboxylic acid). It has the following structural formula: C21H27ClN2O2C23H1...
    Active IngredientHydroxyzine pamoate
    Dosage FormCapsule
    RouteOral
    Strengtheq 50mg hydrochloride; eq 50mg hcl; eq 100mg hcl; eq 25mg hcl; eq 25mg hydrochloride
    Market StatusPrescription
    CompanySandoz; Watson Labs; Emcure Pharms Usa; Barr

    5 Pharmacology and Biochemistry
    5.1 MeSH Pharmacological Classification

    Histamine H1 Antagonists

    Drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine. Included here are the classical antihistaminics that antagonize or prevent the action of histamine mainly in immediate hypersensitivity. They act in the bronchi, capillaries, and some other smooth muscles, and are used to prevent or allay motion sickness, seasonal rhinitis, and allergic dermatitis and to induce somnolence. The effects of blocking central nervous system H1 receptors are not as well understood. (See all compounds classified as Histamine H1 Antagonists.)

    Antipruritics

    Agents, usually topical, that relieve itching (pruritus). (See all compounds classified as Antipruritics.)

    5.2 FDA Pharmacological Classification
    5.2.1 Pharmacological Classes
    Histamine Receptor Antagonists [MoA]; Antihistamine [EPC]