ES8604020A1 - Un procedimiento para la obtencion de polimeros porosos reticulados para liberacion controlada de farmacos - Google Patents

Un procedimiento para la obtencion de polimeros porosos reticulados para liberacion controlada de farmacos

Info

Publication number
ES8604020A1
ES8604020A1 ES535129A ES535129A ES8604020A1 ES 8604020 A1 ES8604020 A1 ES 8604020A1 ES 535129 A ES535129 A ES 535129A ES 535129 A ES535129 A ES 535129A ES 8604020 A1 ES8604020 A1 ES 8604020A1
Authority
ES
Spain
Prior art keywords
water
cross
etoh
drug release
controlled drug
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
ES535129A
Other languages
English (en)
Other versions
ES535129A0 (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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of ES8604020A1 publication Critical patent/ES8604020A1/es
Publication of ES535129A0 publication Critical patent/ES535129A0/es
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605Excipients; Inactive ingredients
    • A61K9/1629Organic macromolecular compounds
    • A61K9/1635Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Public Health (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE UNA COMPOSICION DE POLIMEROS POROSOS RETICULADOS PARA LA LIBERACION CONTROLADA DE FARMACOS. COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE PREPARA UNA COMPOSICION FORMADA POR UN 50 A UN 99% EN PESO DE UN COPOLIMERO DE UN MONOMERO MONOOLEFINICO ACUOINSOLUBLE, CON UN 0 A UN 45% EN PESO DE MONOMEROS DE UN MONOMERO MONOOLEFINICO ACUOSOLUBLE, Y CON UN 50 A UN 1% EN PESO DE UN COPOLIMERO DE UN AGENTE RETICULANTE DE DIVINILO O POLIVINILO, PARA FORMAR UN COPOLIMERO RETICULADO CAPAZ DE HINCHARSE EN AGUA Y EN ETANOL; SEGUNDA, SE SOMETE A LA COMPOSICION FORMADA A UN PROCESO DE COPOLIMERIZACION PARA OBTENER EL COPOLIMERO MENCIONADO; Y POR ULTIMO, SE EQUILIBRA EL COPOLIMERO EN UNA SOLUCION DE UN MEDICAMENTO FARMACEUTICO, CUYO DISOLVENTE HINCHA EL COPOLIMERO.
ES535129A 1983-08-15 1984-08-14 Un procedimiento para la obtencion de polimeros porosos reticulados para liberacion controlada de farmacos Expired ES8604020A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/523,236 US4548990A (en) 1983-08-15 1983-08-15 Crosslinked, porous polymers for controlled drug delivery

Publications (2)

Publication Number Publication Date
ES8604020A1 true ES8604020A1 (es) 1986-01-16
ES535129A0 ES535129A0 (es) 1986-01-16

Family

ID=24084203

Family Applications (1)

Application Number Title Priority Date Filing Date
ES535129A Expired ES8604020A1 (es) 1983-08-15 1984-08-14 Un procedimiento para la obtencion de polimeros porosos reticulados para liberacion controlada de farmacos

Country Status (16)

Country Link
US (1) US4548990A (es)
EP (1) EP0140828B1 (es)
JP (1) JPS6067435A (es)
AT (1) ATE60997T1 (es)
AU (1) AU570712B2 (es)
CA (1) CA1225030A (es)
DE (1) DE3484165D1 (es)
DK (1) DK390584A (es)
ES (1) ES8604020A1 (es)
FI (1) FI80283C (es)
GR (1) GR80109B (es)
IL (1) IL72664A (es)
NO (1) NO167360C (es)
NZ (1) NZ209213A (es)
PT (1) PT79054B (es)
ZA (1) ZA846301B (es)

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JPS55149212A (en) * 1979-05-11 1980-11-20 Toray Ind Inc Gradually releasing preparation of methotrexate

Also Published As

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FI80283C (fi) 1990-05-10
EP0140828A3 (en) 1987-02-04
IL72664A (en) 1988-03-31
NO167360B (no) 1991-07-22
PT79054B (en) 1987-06-03
EP0140828A2 (de) 1985-05-08
JPS6067435A (ja) 1985-04-17
US4548990A (en) 1985-10-22
FI843190A (fi) 1985-02-16
DK390584A (da) 1985-02-16
DK390584D0 (da) 1984-08-14
GR80109B (en) 1984-12-14
EP0140828B1 (de) 1991-02-27
ZA846301B (en) 1985-05-29
PT79054A (en) 1984-09-01
AU570712B2 (en) 1988-03-24
FI843190A0 (fi) 1984-08-13
CA1225030A (en) 1987-08-04
NZ209213A (en) 1986-12-05
FI80283B (fi) 1990-01-31
IL72664A0 (en) 1984-11-30
NO843237L (no) 1985-02-18
ES535129A0 (es) 1986-01-16
AU3189684A (en) 1985-02-21
NO167360C (no) 1991-10-30
ATE60997T1 (de) 1991-03-15
DE3484165D1 (de) 1991-04-04

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