GB935601A - Delayed release preparations for asthma therapy containing theophylline - Google Patents

Delayed release preparations for asthma therapy containing theophylline

Info

Publication number
GB935601A
GB935601A GB17192/61A GB1719261A GB935601A GB 935601 A GB935601 A GB 935601A GB 17192/61 A GB17192/61 A GB 17192/61A GB 1719261 A GB1719261 A GB 1719261A GB 935601 A GB935601 A GB 935601A
Authority
GB
United Kingdom
Prior art keywords
theophylline
medicament
pellets
coating
pellet
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
GB17192/61A
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.)
Key Pharmaceuticals Inc
Original Assignee
Key Pharmaceuticals Inc
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 Key Pharmaceuticals Inc filed Critical Key Pharmaceuticals Inc
Publication of GB935601A publication Critical patent/GB935601A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
    • A61K31/52—Purines, e.g. adenine
    • 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
    • A61K9/2072—Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
    • A61K9/2086—Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat
    • A61K9/209—Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat containing drug in at least two layers or in the core and in at least one outer layer
    • 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
    • A61K9/5015—Organic compounds, e.g. fats, sugars
    • 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
    • A61K9/5073—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 having two or more different coatings optionally including drug-containing subcoatings
    • A61K9/5078—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 having two or more different coatings optionally including drug-containing subcoatings with drug-free core
    • 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
    • A61K9/5084—Mixtures of one or more drugs in different galenical forms, at least one of which being granules, microcapsules or (coated) microparticles according to A61K9/16 or A61K9/50, e.g. for obtaining a specific release pattern or for combining different drugs

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)

Abstract

A sustained release type pharmaceutical preparation adapted to p provide a predetermined total dosage of medicament, said medicament comprising a major portion of a compound selected from theophylline, its salts or derivatives, a minor proportion of a non-addictive antitussive agent and, if desired, an analgesic or antipyretic agent said dosage to be released continuously following ingestion, comprises a plurality of medicament-bearing pellets, at least one pellet having a retardant coating thereon comprising a mixture of at least 95% by weight of the coating of a glyceride and minor amounts of at least one fatty alcohol and of beeswax. The theophylline compound is theophylline sodium acetate, theophylline sodium salicylate, theophylline diethanolamine, theophylline methyl glucamine, theophylline sodium glycinate, theophylline calcium salicylate, theophylline ethylene diamine, 7-hydroxyethyltheophylline and theophylline cholinate. The anti-tussive agent may be thyme extract, dextromethorpham hydrobromide, noscapine or papaverine. Optional ingredients are analgesics or antipyretics, e.g. aspirin or N-acetyl-p-aminophenol. The preparation is in the form of a tablet, pellet or a capsule containing pellets. The pellets may have different thicknesses of said retardant coating so that individual pellets have differing periods of retardation, e.g. releasing the medicament in one, two and three hours. The preparation may contain a mixture of (a) a pellet containing a core covered by a medicament-bearing layer and having a further layer thereon of a coating soluble in gastric fluids and (b) pellets containing a medicament bearing layer on an inner core with a final layer of the said retardant coating, the final coating on different pellets having different thicknesses. Specification 935,602 is referred to.
GB17192/61A 1961-01-31 1961-05-11 Delayed release preparations for asthma therapy containing theophylline Expired GB935601A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85978A US3109775A (en) 1961-01-31 1961-01-31 Theophylline-noscapine sustained release composition for treatment of asthma
DEK0050632 1963-08-24

Publications (1)

Publication Number Publication Date
GB935601A true GB935601A (en) 1963-08-28

Family

ID=25983781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17192/61A Expired GB935601A (en) 1961-01-31 1961-05-11 Delayed release preparations for asthma therapy containing theophylline

Country Status (5)

Country Link
US (1) US3109775A (en)
BE (1) BE636568A (en)
DE (1) DE1467966A1 (en)
GB (1) GB935601A (en)
NL (1) NL297088A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484253A1 (en) * 1980-05-06 1981-12-18 Bristol Myers Co EXTENDED RELEASE THEOPHYLLIN TABLET
GR880100297A (en) * 1987-05-08 1989-02-23 Orion Yhtymae Oy A new synthesis / composition

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432593A (en) * 1963-09-18 1969-03-11 Key Pharm Inc Delayed and sustained release type pharmaceutical preparation
US4587118A (en) * 1981-07-15 1986-05-06 Key Pharmaceuticals, Inc. Dry sustained release theophylline oral formulation
JPS58501128A (en) * 1981-07-15 1983-07-14 キイ・フア−マシユ−テイカルズ・インコ−ポレイテツド sustained release theophylline
US4764380A (en) * 1982-03-22 1988-08-16 Alza Corporation Drug delivery system comprising a volume increasing matrix containing a plurality of tiny pills
SE8203953D0 (en) * 1982-06-24 1982-06-24 Astra Laekemedel Ab PHARMACEUTICAL MIXTURE
US4994260A (en) * 1982-05-28 1991-02-19 Astra Lakemedel Aktiebolag Pharmaceutical mixture
US4508702A (en) * 1982-06-14 1985-04-02 Key Pharmaceuticals, Inc. Sustained release aspirin
US4503031A (en) * 1982-12-17 1985-03-05 Glassman Jacob A Super-fast-starting-sustained release tablet
IE55745B1 (en) * 1983-04-06 1991-01-02 Elan Corp Plc Sustained absorption pharmaceutical composition
US4555399A (en) * 1983-11-18 1985-11-26 Key Pharmaceuticals, Inc. Aspirin tablet
US4876094A (en) * 1984-01-13 1989-10-24 Battelle Development Corporation Controlled release liquid dosage formulation
US4837032A (en) * 1986-02-04 1989-06-06 Farval Ag Theophylline sustained release tablet
IL78017A (en) * 1986-03-03 1989-06-30 Yissum Res Dev Co Sustained release tablets of theophylline
US5019302A (en) * 1986-03-12 1991-05-28 Washington University Technology Associates, Inc. Method for granulation
AU7280387A (en) * 1986-04-07 1987-11-09 Rorer International (Overseas) Inc. Method for the preparation of a sustained release pharmaceutical composition and the compostion prepared thereby
US5026709A (en) * 1986-04-07 1991-06-25 Rorer Pharmaceutical Corporation Method for the preparation of a theophylline sustained release pharmaceutical composition and the composition prepared thereby
US4851232A (en) * 1987-02-13 1989-07-25 Alza Corporation Drug delivery system with means for obtaining desirable in vivo release rate pattern
US5030454A (en) * 1987-10-26 1991-07-09 Alza Corporation Method for delivering drug in tiny pills in liquid carrier
US4961932A (en) * 1987-10-26 1990-10-09 Alza Corporation Plurality of tiny pills in liquid dosage form
US4853229A (en) * 1987-10-26 1989-08-01 Alza Corporation Method for adminstering tiny pills
US5162110A (en) * 1990-12-19 1992-11-10 Rhone-Poulenc Rorer Pharmaceuticals Inc. Binding theophylline to ion exchange resins
AR028986A1 (en) * 1999-02-23 2003-06-04 Smithkline Beecham Corp USE OF A PDE4 INHIBITOR IN THE MANUFACTURE OF A CONTROLLED LIBERATION PREPARATION; FORMULATION OF CONTROLLED RELEASE FOR THE TREATMENT OF COPD, A PROCEDURE FOR ITS PREPARATION AND PHARMACEUTICAL COMPOSITION
GB0227948D0 (en) * 2002-11-29 2003-01-08 Cipla Ltd Pharmaceutical combinations comprising b-2 adrenoreceptor agonists and xanthines
US20160199463A1 (en) * 2014-12-15 2016-07-14 The Johns Hopkins University Hdac2 defends vascular endothelium from injury

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752285A (en) * 1950-10-09 1956-06-26 Weissenburger Helmut Process for the production of at least approximately neutral solutions of substituted xanthines
US2738303A (en) * 1952-07-18 1956-03-13 Smith Kline French Lab Sympathomimetic preparation
US2881085A (en) * 1953-11-09 1959-04-07 Abbott Lab Thin film coating for tablets and the like
US2853420A (en) * 1956-01-25 1958-09-23 Lowey Hans Ethyl cellulose coatings for shaped medicinal preparations
BE556141A (en) * 1956-03-27
US2954323A (en) * 1958-10-06 1960-09-27 Abbott Lab Thin film coating for tablets and the like
US2987445A (en) * 1958-10-10 1961-06-06 Rohm & Haas Drug composition
US2928770A (en) * 1958-11-28 1960-03-15 Frank M Bardani Sustained action pill
NL270408A (en) * 1960-10-20

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484253A1 (en) * 1980-05-06 1981-12-18 Bristol Myers Co EXTENDED RELEASE THEOPHYLLIN TABLET
GR880100297A (en) * 1987-05-08 1989-02-23 Orion Yhtymae Oy A new synthesis / composition
BE1000785A3 (en) * 1987-05-08 1989-04-04 Orion Yhtymae Oy Composition administered drug form of tablets, powder or liquid.
FR2630912A1 (en) * 1987-05-08 1989-11-10 Orion Yhtymae Oy COMPOSITION FOR ADMINISTERING A MEDICAMENT IN THE FORM OF GELULES, POWDER OR LIQUID

Also Published As

Publication number Publication date
NL297088A (en)
DE1467966A1 (en) 1969-02-20
US3109775A (en) 1963-11-05
BE636568A (en)

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