ES8603263A1 - Un procedimiento para encapsular un compuesto organico debilmente acido cuya solubilidad en agua es mayor a un primer ph que a un segundo ph - Google Patents

Un procedimiento para encapsular un compuesto organico debilmente acido cuya solubilidad en agua es mayor a un primer ph que a un segundo ph

Info

Publication number
ES8603263A1
ES8603263A1 ES533587A ES533587A ES8603263A1 ES 8603263 A1 ES8603263 A1 ES 8603263A1 ES 533587 A ES533587 A ES 533587A ES 533587 A ES533587 A ES 533587A ES 8603263 A1 ES8603263 A1 ES 8603263A1
Authority
ES
Spain
Prior art keywords
encapsulation
small particle
particle formation
formation
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES533587A
Other languages
English (en)
Other versions
ES533587A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ohio State University Research Foundation
Original Assignee
Ohio State University Research Foundation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ohio State University Research Foundation filed Critical Ohio State University Research Foundation
Publication of ES533587A0 publication Critical patent/ES533587A0/es
Publication of ES8603263A1 publication Critical patent/ES8603263A1/es
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
    • A61K9/5042—Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5026—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
    • A61K9/5042—Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
    • A61K9/5047—Cellulose ethers containing no ester groups, e.g. hydroxypropyl methylcellulose
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5052—Proteins, e.g. albumin
    • A61K9/5057—Gelatin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5089—Processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/10—Complex coacervation, i.e. interaction of oppositely charged particles

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dental Preparations (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCEDIMIENTO PARA ENCAPSULAR UN COMPUESTO ORGANICO DEBILMENTE ACIDO O BASICO, TAL COMO SULFADIAZINA, BACAMPICILINA Y OTROS COMPUESTOS FARMACEUTICAMENTE ACTIVOS, CUYA SOLUBILIDAD EN AGUA ES MAYOR A UN PH QUE A OTRO. CONSISTE EN DISOLVER EL COMPUESTO EN AGUA EN PRESENCIA DE ALCALI O ACIDO SUFICIENTE PARA ELEVAR O REBAJAR EL PH HASTA UN PRIMER PH Y AL MENOS 2 UNIDADES DE PH POR ENCIMA O POR DEBAJO, SEGUN EL CASO, DEL PKA DEL COMPUESTO, JUNTO CON UN MATERIAL DE ENCAPSULACION Y UN ELECTROLITO PARA CAUSAR LA COACERVACION DEL MATERIAL DE ENCAPSULACION SIN INTERACTUAR CON EL. SE AGITA Y SE VALORA ESA SOLUCION PARA REDUCIR O ELEVAR SU PH HASTA UN SEGUNDO PH, CON EL FIN DE LOGRAR LA PRECIPITACION CONCURRENTE DEL COMPUESTO COMO PEQUEÑAS PARTICULAS Y LA AGLOMERACION DEL MATERIAL DE ENCAPSULACION QUE POSTERIORMENTE SE GELIFICA. USO EN PREPARACIONES MEDICINALES EN FORMA DE CAPSULAS.
ES533587A 1983-06-22 1984-06-20 Un procedimiento para encapsular un compuesto organico debilmente acido cuya solubilidad en agua es mayor a un primer ph que a un segundo ph Expired ES8603263A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50659983A 1983-06-22 1983-06-22

Publications (2)

Publication Number Publication Date
ES533587A0 ES533587A0 (es) 1985-12-16
ES8603263A1 true ES8603263A1 (es) 1985-12-16

Family

ID=24015260

Family Applications (1)

Application Number Title Priority Date Filing Date
ES533587A Expired ES8603263A1 (es) 1983-06-22 1984-06-20 Un procedimiento para encapsular un compuesto organico debilmente acido cuya solubilidad en agua es mayor a un primer ph que a un segundo ph

Country Status (13)

Country Link
EP (1) EP0130162B1 (es)
KR (1) KR910002643B1 (es)
AT (1) ATE29392T1 (es)
CA (1) CA1222456A (es)
CY (1) CY1558A (es)
DE (1) DE3465888D1 (es)
ES (1) ES8603263A1 (es)
HK (1) HK70490A (es)
IL (1) IL72106A (es)
MY (1) MY102469A (es)
NZ (1) NZ208579A (es)
PH (1) PH20754A (es)
SG (1) SG55290G (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606940A (en) * 1984-12-21 1986-08-19 The Ohio State University Research Foundation Small particle formation and encapsulation
IT1214629B (it) * 1985-08-29 1990-01-18 Formenti Farmaceutici Spa Procedimento di microincapsulazione di un medicamento,medicamento cosi'preparato,e composizioni farmaceutiche che lo comprendono
AU591248B2 (en) * 1986-03-27 1989-11-30 Kinaform Technology, Inc. Sustained-release pharaceutical preparation
DE3790487C2 (de) * 1986-08-18 1994-08-18 Emisphere Tech Inc Mikroverkapselung für pharmakologische Mittel
USRE35862E (en) * 1986-08-18 1998-07-28 Emisphere Technologies, Inc. Delivery systems for pharmacological agents encapsulated with proteinoids
DE3745075C2 (de) * 1986-08-18 1997-04-30 Emisphere Tech Inc Mikroverkapselung für pharmakologische Mittel
US5075109A (en) * 1986-10-24 1991-12-24 Southern Research Institute Method of potentiating an immune response
IL84167A (en) * 1986-10-24 1991-04-15 Southern Res Inst Oral delivery of bioactive agents to and through the peyer's patch by use of microencapsulation
US5811128A (en) * 1986-10-24 1998-09-22 Southern Research Institute Method for oral or rectal delivery of microencapsulated vaccines and compositions therefor
GB8628728D0 (en) * 1986-12-02 1987-01-07 Euro Celtique Sa Spheroids
US5035896A (en) * 1988-06-15 1991-07-30 Warner-Lambert Company Water insoluble drugs coated by coacervated fish gelatin
US5629020A (en) * 1994-04-22 1997-05-13 Emisphere Technologies, Inc. Modified amino acids for drug delivery
US5443841A (en) * 1992-06-15 1995-08-22 Emisphere Technologies, Inc. Proteinoid microspheres and methods for preparation and use thereof
US5578323A (en) 1992-06-15 1996-11-26 Emisphere Technologies, Inc. Proteinoid carriers and methods for preparation and use thereof
US5447728A (en) * 1992-06-15 1995-09-05 Emisphere Technologies, Inc. Desferrioxamine oral delivery system
US5714167A (en) 1992-06-15 1998-02-03 Emisphere Technologies, Inc. Active agent transport systems
US5401516A (en) * 1992-12-21 1995-03-28 Emisphere Technologies, Inc. Modified hydrolyzed vegetable protein microspheres and methods for preparation and use thereof
US6001347A (en) 1995-03-31 1999-12-14 Emisphere Technologies, Inc. Compounds and compositions for delivering active agents
US5750147A (en) 1995-06-07 1998-05-12 Emisphere Technologies, Inc. Method of solubilizing and encapsulating itraconazole
JP2000512671A (ja) 1996-06-14 2000-09-26 エミスフェアー テクノロジーズ インク マイクロカプセル化香料及び調製方法
DE69911158T2 (de) * 1999-01-06 2004-07-22 Técnimede-Sociedade Técnico-Medicinal, S.A. Herstellungsverfahren für granuläre Matrizen durch Polymerausfällung in sauren Lösungen
EP4159201A1 (en) * 2021-09-30 2023-04-05 Biomind Labs Inc Encapsulated microparticles and nanoparticles of dimethyltriptamines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1542262A1 (de) * 1965-03-05 1970-03-26 Keuffel & Esser Co Verfahren zur Herstellung von mit fluessigen oder festen Materialien gefuellten Kapseln
US3666678A (en) * 1968-01-12 1972-05-30 Benjamin Mosier Process of encapsulating basic nitrogen compounds with acid-precursor gelatin
DE3013839A1 (de) * 1979-04-13 1980-10-30 Freunt Ind Co Ltd Verfahren zur herstellung einer aktivierten pharmazeutischen zusammensetzung

Also Published As

Publication number Publication date
CA1222456A (en) 1987-06-02
KR850000239A (ko) 1985-02-26
ES533587A0 (es) 1985-12-16
HK70490A (en) 1990-09-14
ATE29392T1 (de) 1987-09-15
MY102469A (en) 1992-01-30
EP0130162B1 (en) 1987-09-09
KR910002643B1 (ko) 1991-04-27
DE3465888D1 (en) 1987-10-15
EP0130162A2 (en) 1985-01-02
IL72106A0 (en) 1984-10-31
SG55290G (en) 1990-09-07
NZ208579A (en) 1986-12-05
EP0130162A3 (en) 1985-05-15
PH20754A (en) 1987-04-02
IL72106A (en) 1988-02-29
CY1558A (en) 1991-03-22

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001102