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IE810036L - Sustained release compositions - Google Patents

Sustained release compositions

Info

Publication number
IE810036L
IE810036L IE810036A IE3681A IE810036L IE 810036 L IE810036 L IE 810036L IE 810036 A IE810036 A IE 810036A IE 3681 A IE3681 A IE 3681A IE 810036 L IE810036 L IE 810036L
Authority
IE
Ireland
Prior art keywords
amount
milligrams
release controlling
agent
controlling agent
Prior art date
Application number
IE810036A
Other versions
IE50806B1 (en
Original Assignee
Boots Co Ltd
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 US06/194,453 external-priority patent/US4308251A/en
Application filed by Boots Co Ltd filed Critical Boots Co Ltd
Publication of IE810036L publication Critical patent/IE810036L/en
Publication of IE50806B1 publication Critical patent/IE50806B1/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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054—Cellulose; Cellulose derivatives, 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2059—Starch, including chemically or physically modified derivatives; Amylose; Amylopectin; Dextrin

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

A sustained release pharmaceutical composition in table-t form comprises an effective amount of an orallyactive therapeutic agent, 0.8 to 1. 6% by weight of a release controlling agent and 1.0 to 7.5% by weight of an erosion promoting agent, the relative amounts of the components being such that a criticality factor calculated according to equation I lies in the range 20 to 450. Equation 1 is <IMG> I wherein CF is the criticality factor, CA is the. amount of therapeutic agent per tablet in milligrams divided by the amount of release controlling agent per tablet in milligrams and CS is the amount of erosion promoting agent per tablet in milligrams divided by the amount of release controlling agent per-tablet in milligrams, Suitable therapeutic agents include acetylsalicylic acid, ibuprofen and flurbiprofen. A preferred release controlling agent is cellulose acetate phthalate and a preferred erosion promoting agent is corn starch. [CA1140466A]
IE36/81A 1980-01-11 1981-01-09 Pharmaceutical compositions IE50806B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11143080A 1980-01-11 1980-01-11
US06/194,453 US4308251A (en) 1980-01-11 1980-10-17 Controlled release formulations of orally-active medicaments

Publications (2)

Publication Number Publication Date
IE810036L true IE810036L (en) 1981-07-11
IE50806B1 IE50806B1 (en) 1986-07-23

Family

ID=26808896

Family Applications (1)

Application Number Title Priority Date Filing Date
IE36/81A IE50806B1 (en) 1980-01-11 1981-01-09 Pharmaceutical compositions

Country Status (22)

Country Link
JP (1) JPS56103110A (en)
AT (1) AT374681B (en)
AU (1) AU542824B2 (en)
BE (1) BE886998A (en)
CA (1) CA1140466A (en)
CH (1) CH646604A5 (en)
DE (1) DE3100191A1 (en)
DK (1) DK6181A (en)
ES (2) ES8205353A1 (en)
FI (1) FI76927C (en)
FR (1) FR2473308B1 (en)
GB (1) GB2067072B (en)
GR (1) GR73843B (en)
IE (1) IE50806B1 (en)
IN (1) IN151913B (en)
IT (1) IT1221041B (en)
LU (1) LU83052A1 (en)
NL (1) NL8100037A (en)
NO (1) NO156153C (en)
NZ (1) NZ195933A (en)
SE (1) SE447450B (en)
ZA (1) ZA81136B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496082A (en) * 1947-05-24 1950-01-31 Ashenfelter William Scaffold structure
IT1144911B (en) * 1981-03-19 1986-10-29 Pharmatec Spa CONTROLLED RELEASE PHARMACEUTICAL COMPOSITION CONTAINING IBUPROFEN
JPS59227817A (en) * 1983-06-07 1984-12-21 Toyo Jozo Co Ltd Long-acting bredinin preparation for oral administration
JPH0662404B2 (en) * 1983-06-14 1994-08-17 シンテックス・ファーマシユーテイカルズ・インターナシヨナル・リミテツド Controlled-release naproxen and naproxen sodium tablets
ZA836031B (en) * 1983-08-16 1985-02-27 Verex Lab Constant release rate solid dosage theophylline formulation
ZA836030B (en) * 1983-08-16 1985-02-27 Verex Lab Constant order release solid dosage indomethacin formulation and method of treating arthritis and other inflammatory conditions
DE3486029T2 (en) * 1983-10-14 1993-05-13 Sumitomo Pharma IFN PREPARATION WITH DELAYED DELIVERY FOR PARENTAL ADMINISTRATION.
US4774091A (en) * 1983-10-14 1988-09-27 Sumitomo Pharmaceuticals Company, Ltd. Long-term sustained-release preparation
US4855134A (en) * 1983-10-14 1989-08-08 Sumitomo Pharmaceuticals Company, Limited Sustained-release preparation
US5385738A (en) * 1983-10-14 1995-01-31 Sumitomo Pharmaceuticals Company, Ltd. Sustained-release injection
EP0230647B1 (en) * 1985-12-27 1993-03-31 Sumitomo Pharmaceuticals Company, Limited Method for producing a sustained release formulation
GB8601204D0 (en) * 1986-01-18 1986-02-19 Boots Co Plc Therapeutic agents
US4968508A (en) * 1987-02-27 1990-11-06 Eli Lilly And Company Sustained release matrix
ZA881301B (en) * 1987-02-27 1989-10-25 Lilly Co Eli Sustained release matrix formulations
WO1997002019A1 (en) * 1995-06-30 1997-01-23 Baylor University Polyester/carboxylic acid composite materials

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953497A (en) * 1953-06-03 1960-09-20 Howard A Press Therapeutic tablets
NL128902C (en) * 1960-06-06
US3577514A (en) * 1968-06-10 1971-05-04 Pfizer Sustained release pharmaceutical tablets
US3773920A (en) * 1971-07-14 1973-11-20 Nikken Chemicals Co Ltd Sustained release medicinal composition
US3906086A (en) * 1971-07-19 1975-09-16 Richard G Powers Timed-release aspirin
GB1500300A (en) * 1975-01-06 1978-02-08 Ciba Geigy Ag Pharmaceutical preparation for the treatment of circulatory disorders
JPS5411226A (en) * 1977-06-24 1979-01-27 Shin Etsu Chem Co Ltd Disintegratable granule

Also Published As

Publication number Publication date
ZA81136B (en) 1982-01-27
SE447450B (en) 1986-11-17
GR73843B (en) 1984-05-07
GB2067072B (en) 1983-08-10
NO156153C (en) 1987-08-05
FR2473308B1 (en) 1985-07-19
CH646604A5 (en) 1984-12-14
NZ195933A (en) 1982-11-23
DK6181A (en) 1981-07-12
IT1221041B (en) 1990-06-21
NL8100037A (en) 1981-08-03
DE3100191C2 (en) 1988-09-01
IT8147537A0 (en) 1981-01-09
FI76927B (en) 1988-09-30
JPS56103110A (en) 1981-08-18
AU6597681A (en) 1981-07-16
NO810062L (en) 1981-07-13
IN151913B (en) 1983-09-03
ATA5481A (en) 1983-10-15
BE886998A (en) 1981-07-08
AU542824B2 (en) 1985-03-14
ES509179A0 (en) 1982-12-16
AT374681B (en) 1984-05-25
LU83052A1 (en) 1982-09-10
GB2067072A (en) 1981-07-22
CA1140466A (en) 1983-02-01
NO156153B (en) 1987-04-27
FR2473308A1 (en) 1981-07-17
ES498369A0 (en) 1982-06-01
IE50806B1 (en) 1986-07-23
SE8100104L (en) 1981-07-12
FI76927C (en) 1989-01-10
ES8301629A1 (en) 1982-12-16
FI810056L (en) 1981-07-12
ES8205353A1 (en) 1982-06-01
DE3100191A1 (en) 1981-12-10

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