IE790891L - Controlled release of drugs - Google Patents

Controlled release of drugs

Info

Publication number
IE790891L
IE790891L IE790891A IE89179A IE790891L IE 790891 L IE790891 L IE 790891L IE 790891 A IE790891 A IE 790891A IE 89179 A IE89179 A IE 89179A IE 790891 L IE790891 L IE 790891L
Authority
IE
Ireland
Prior art keywords
controlled release
drugs
porous
hydrogel
devices
Prior art date
Application number
IE790891A
Other versions
IE48751B1 (en
Original Assignee
Pfizer
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
Priority claimed from US06/014,388 external-priority patent/US4220153A/en
Priority claimed from US06/014,387 external-priority patent/US4220152A/en
Application filed by Pfizer filed Critical Pfizer
Publication of IE790891L publication Critical patent/IE790891L/en
Publication of IE48751B1 publication Critical patent/IE48751B1/en

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
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
    • A61K9/0068—Rumen, e.g. rumen bolus

Landscapes

  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Physiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Detergent Compositions (AREA)
  • Fodder In General (AREA)
  • Paper (AREA)
  • External Artificial Organs (AREA)
  • Dairy Products (AREA)

Abstract

Delivery systems and devices for the controlled release of chemicals, including drugs, comprise a wall, formed in part at least, of a porous material, including a porous fabric material, pores of which contain a hydrogel, said porous wall being in contact with at least a portion of a reservoir comprised of a chemical and, if desired, a water-soluble liquid excipient and/or a detergent. Emphasis is given to said systems and devices in which the hydrogel is gelled cellulose triacetate, and to their use for controlled release of drugs to animals, especially to ruminants over prolonged periods of time. [GB2020181A]
IE891/79A 1978-05-08 1979-08-08 Improved delivery system IE48751B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US90404978A 1978-05-08 1978-05-08
US90407878A 1978-05-08 1978-05-08
US06/014,388 US4220153A (en) 1978-05-08 1979-02-22 Controlled release delivery system
US06/014,387 US4220152A (en) 1978-05-08 1979-02-22 Delivery system

Publications (2)

Publication Number Publication Date
IE790891L true IE790891L (en) 1979-11-08
IE48751B1 IE48751B1 (en) 1985-05-15

Family

ID=27486383

Family Applications (1)

Application Number Title Priority Date Filing Date
IE891/79A IE48751B1 (en) 1978-05-08 1979-08-08 Improved delivery system

Country Status (40)

Country Link
JP (1) JPS5514080A (en)
AR (1) AR219795A1 (en)
AT (1) AT389463B (en)
AU (1) AU513656B2 (en)
BE (1) BE876074A (en)
CA (1) CA1113395A (en)
CH (1) CH643140A5 (en)
CS (1) CS236761B2 (en)
DD (2) DD143504A5 (en)
DE (1) DE2918522C2 (en)
DK (1) DK153917C (en)
EG (1) EG15524A (en)
ES (1) ES480320A0 (en)
FI (1) FI75735C (en)
FR (1) FR2425242A1 (en)
GB (1) GB2020181B (en)
GR (1) GR73637B (en)
HK (1) HK13384A (en)
HU (1) HU186995B (en)
IE (1) IE48751B1 (en)
IL (1) IL57227A (en)
IN (1) IN152178B (en)
IT (1) IT1202924B (en)
KE (1) KE3367A (en)
LU (1) LU81233A1 (en)
MA (1) MA18423A1 (en)
MX (1) MX5953E (en)
NL (1) NL179703C (en)
NO (1) NO147902C (en)
NZ (1) NZ190386A (en)
PH (1) PH17566A (en)
PL (1) PL126835B1 (en)
PT (1) PT69583A (en)
RO (1) RO81625B (en)
SE (1) SE440449B (en)
SG (1) SG65583G (en)
SU (1) SU1222186A3 (en)
YU (1) YU44183B (en)
ZA (1) ZA792129B (en)
ZM (1) ZM4079A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8305797D0 (en) * 1983-03-02 1983-04-07 Graham N B Hydrogel-containing envelopes
GB8328916D0 (en) * 1983-10-28 1983-11-30 Castex Prod Pharmaceutical pellet
GB8403138D0 (en) * 1984-02-07 1984-03-14 Graham N B Sustained release of active ingredient
NZ212100A (en) * 1984-06-02 1988-07-28 Castex Prod Rumen bolus; outer casing sheds in segments
US4666704A (en) * 1985-05-24 1987-05-19 International Minerals & Chemical Corp. Controlled release delivery system for macromolecules
DE3533369A1 (en) * 1985-09-19 1987-03-19 Alois Prof Dr Med Bloemer ANTIBIOTIC CONTAINER AND ITS USE AS SURGICAL PLASTIC MATERIAL
US4717567A (en) * 1985-11-25 1988-01-05 Eastman Kodak Company Rumen-stable pellets
US5342624A (en) * 1989-02-16 1994-08-30 British Technology Group Ltd. Dispensing device
DE4100920A1 (en) * 1991-01-15 1992-07-16 Degussa ACTIVE SUBSTANCE PREPARATION FOR ORAL ADMINISTRATION TO Ruminants
AU692786B2 (en) * 1993-07-02 1998-06-18 Materials Evolution And Development Usa, Inc. Implantable system for cell growth control
US6479066B1 (en) 1999-12-16 2002-11-12 Rst Implanted Cell Technology, Llc Device having a microporous membrane lined deformable wall for implanting cell cultures
CN1305953C (en) * 2005-04-06 2007-03-21 福建师范大学 Method for producing agglomerate of plastic agricultural film possessing function for expelling pests
EP4477215A3 (en) 2020-12-08 2025-02-19 Ruminant Biotech Corp Limited Improvements to devices and methods for delivery of substances to animals

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1693890A (en) * 1922-09-11 1928-12-04 Duclaux Jacques Ultrafilter membrane
US3279996A (en) * 1962-08-28 1966-10-18 Jr David M Long Polysiloxane carrier for controlled release of drugs and other agents
US3993073A (en) * 1969-04-01 1976-11-23 Alza Corporation Novel drug delivery device
US3948262A (en) * 1969-04-01 1976-04-06 Alza Corporation Novel drug delivery device
US3777015A (en) * 1970-01-19 1973-12-04 Alza Corp Device for suppressing fertility
BE789524A (en) * 1971-09-30 1973-01-15 Alza Corp DRUG RELEASE SYSTEM
US3948254A (en) * 1971-11-08 1976-04-06 Alza Corporation Novel drug delivery device
US3975350A (en) * 1972-08-02 1976-08-17 Princeton Polymer Laboratories, Incorporated Hydrophilic or hydrogel carrier systems such as coatings, body implants and other articles
US3846404A (en) * 1973-05-23 1974-11-05 Moleculon Res Corp Process of preparing gelled cellulose triacetate products and the products produced thereby
US3961628A (en) * 1974-04-10 1976-06-08 Alza Corporation Ocular drug dispensing system

Also Published As

Publication number Publication date
AU4674279A (en) 1979-11-29
FI75735C (en) 1988-08-08
DD152482A5 (en) 1981-12-02
FI75735B (en) 1988-04-29
YU44183B (en) 1990-04-30
DD143504A5 (en) 1980-08-27
SU1222186A3 (en) 1986-03-30
AR219795A1 (en) 1980-09-15
PL126835B1 (en) 1983-09-30
NZ190386A (en) 1981-04-24
IE48751B1 (en) 1985-05-15
IL57227A0 (en) 1979-09-30
NO147902C (en) 1983-07-06
DK122779A (en) 1979-11-09
IN152178B (en) 1983-11-05
NL179703C (en) 1986-11-03
ES8305583A1 (en) 1983-04-16
GB2020181A (en) 1979-11-14
ES480320A0 (en) 1983-04-16
GR73637B (en) 1984-03-26
CA1113395A (en) 1981-12-01
ZA792129B (en) 1980-05-28
IT1202924B (en) 1989-02-15
RO81625B (en) 1983-04-30
FI791452A7 (en) 1979-11-09
MA18423A1 (en) 1979-12-31
MX5953E (en) 1984-09-06
LU81233A1 (en) 1979-12-07
RO81625A (en) 1983-04-29
ZM4079A1 (en) 1981-02-23
BE876074A (en) 1979-11-07
IT7922426A0 (en) 1979-05-07
DK153917B (en) 1988-09-26
ATA339379A (en) 1989-05-15
JPS5514080A (en) 1980-01-31
CH643140A5 (en) 1984-05-30
AT389463B (en) 1989-12-11
JPS6118525B2 (en) 1986-05-13
DE2918522A1 (en) 1979-11-15
FR2425242A1 (en) 1979-12-07
GB2020181B (en) 1982-10-27
NL7903549A (en) 1979-11-12
SE440449B (en) 1985-08-05
CS236761B2 (en) 1985-05-15
EG15524A (en) 1987-05-30
NL179703B (en) 1986-06-02
PH17566A (en) 1984-10-01
AU513656B2 (en) 1980-12-11
NO791514L (en) 1979-11-09
DK153917C (en) 1989-02-06
PT69583A (en) 1979-06-01
IL57227A (en) 1982-04-30
KE3367A (en) 1984-02-10
HU186995B (en) 1985-10-28
HK13384A (en) 1984-02-24
FR2425242B1 (en) 1984-12-14
PL215452A1 (en) 1980-03-10
NO147902B (en) 1983-03-28
DE2918522C2 (en) 1986-06-19
YU106679A (en) 1984-10-31
SE7903973L (en) 1979-11-09
SG65583G (en) 1985-03-29

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Legal Events

Date Code Title Description
MK9A Patent expired