Containing Solid Synthetic Polymers Patents (Class 424/482)
  • Patent number: 6066339
    Abstract: An oral morphine multiparticulate formulation for once-daily administration to a patient, comprising sustained release particles each having a core containing water soluble morphine and an osmotic agent, the core being coated with a rate-controlling polymer coat comprised of ammonio methacrylate copolymers in an amount sufficient to achieve therapeutically effective plasma levels of morphine over at least 24 hours in the patient.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: May 23, 2000
    Assignee: Elan Corporation, plc
    Inventors: Paul Stark, Sean Cunningham, Jagathesan Moodley
  • Patent number: 6051255
    Abstract: The present invention is to a tablet formulation, being a medicament for oral administration for the treatment of bacterial infections, the tablet comprising a compacted mixture of 750-950 mg of amoxycillin and a quantity of clavulanate in a weight ratio of amoxycillin:clavulanate between 6:1 to 8:1 inclusive, and having a film coating of polymers which can be applied by aqueous film coating techniques.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: April 18, 2000
    Assignee: SmithKline Beecham plc
    Inventors: Creighton Pierce Conley, Nigel Philip McCreath Davidson, Ernest Lionel Gilbert Rivett, Kenneth Trevor Yeates
  • Patent number: 6048548
    Abstract: Sustained release oral solid dosage forms comprising agglomerated particles of a therapeutically active medicament in amorphous form, a gelling agent, an ionizable gel strength enhancing agent and an inert diluent, as well as processes for preparing and using the same are disclosed. The sustained release oral solid dosage forms are useful in the treatment of hypertension in human patients.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: April 11, 2000
    Assignee: Edward Mendell Co., Inc.
    Inventor: Anand Baichwal
  • Patent number: 6036973
    Abstract: A dosage form is disclosed for administering 10 ng to 1200 mg tacrine to a patient in need of tacrine therapy.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: March 14, 2000
    Assignee: ALZA Corporation
    Inventors: George V. Guittard, Jerry D. Childers, Patrick S.-L. Wong, Fernando E. Gumucio, David J. Kidney
  • Patent number: 6033686
    Abstract: The invention provides a controlled release tablet, free of stabilizer and free of pore-forming agent comprising: (i) a core consisting essentially of bupropion hydrochloride, a binder and a lubricant; and (ii) a coating consisting essentially of a water-insoluble, water-permeable film-forming polymer, a plasticizer and a water-soluble polymer.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: March 7, 2000
    Assignee: Pharma Pass LLC
    Inventor: Pawan Seth
  • Patent number: 6027748
    Abstract: Described herein is a particular type of pharmaceutical tablet, for oral use, which is formed by one or more layers, and is specifically designed for controlled release of active principles that present problems of bio-availability linked to absorption in the gastro-intestinal tract, and in particular active principles that present an erratic and unpredictable absorption linked to the presence or absence of food at the level of the stomach and/or of the first portion of the small intestine, the said pharmaceutical form being characterized in that it is completely coated with one or more films of a biocompatible and biodegradable polymeric material.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: February 22, 2000
    Assignee: Jagotec AG
    Inventors: Ubaldo Conte, Lauretta Maggi, Pascal Grenier, Guy Vergnault, Robert Zimmer
  • Patent number: 6025391
    Abstract: Disclosed are pharmaceutical compositions which have been modified to release pharmaceutically acceptable mycophenolate salts in the upper part of the intestinal tract and methods of treatment using the pharmaceutical compositions.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: February 15, 2000
    Assignee: Novartis AG
    Inventors: Barbara Haeberlin, Ching-Pong Mak, Armin Meinzer, Jacky Vonderscher
  • Patent number: 6024982
    Abstract: A controlled release tablet for oral administration is disclosed which has a tablet core including an insoluble therapeutically active agent having an aqueous solubility of less than or equal to about 5 mg/ml in a sufficient amount to render a therapeutic effect. The core provides rapid release of said therapeutically active agent upon exposure to aqueous solutions. The tablet core is coated with a controlled release coating permitting sustained release of said therapeutically active agent when said coated tablet is exposed to aqueous solutions.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 15, 2000
    Assignee: Euro-Celtique, S.A.
    Inventors: Benjamin Oshlack, Mark Chasin
  • Patent number: 6004582
    Abstract: The present invention provides a simple and improved multi-layered osmotic device (1) that is capable of delivering a first active agent in an outer lamina (2) to one environment of use and a second active agent in the core (5) to another environment of use. Particular embodiments of the invention provide osmotic devices in which the first and second active agents are similar or dissimilar. An erodible polymer coat (3) between an internal semipermeable membrane (4) and a second active agent-containing external coat (2) comprises poly(vinylpyrrolidone)-(vinyl acetate) copolymer. This particular erodible polymer results in an improved multi-layered osmotic device possessing advantages over related devices known in the art. The active agent in the core (5) is delivered through a pore (6) containing an erodible plug (7). The osmotic device (1) can be coated by a final finish coat (8).
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: December 21, 1999
    Assignee: Laboratorios Phoenix U.S.A, Inc.
    Inventors: Joaquina Faour, Jorge Mayorga
  • Patent number: 6001391
    Abstract: A process for producing solid combination tablets which have at least two phases comprises molding a melt of a polymeric binder with or without at least one active ingredient, there being at least one solid product, which may contain an active ingredient incorporated into the still plastic composition during the molding step.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: December 14, 1999
    Assignee: Basf Aktiengesellschaft
    Inventors: Jurgen Zeidler, Joerg Rosenberg, Jorg Breitenbach, Andreas Kleinke, Werner Maier
  • Patent number: 5997903
    Abstract: The invention relates to oral presentation forms for pantoprazole, which consist of a core, an intermediate layer and an outer layer which is resistant to gastric juice.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: December 7, 1999
    Assignee: Byk Gulden Lomberg Chemische Fabrik GmbH
    Inventors: Rango Dietrich, Hartmut Ney
  • Patent number: 5997517
    Abstract: A medical device is coated with a thin coherent bond coat of acrylics, epoxies, acetals, ethylene copolymers, vinyl polymers, polymers containing hydroxyl, amine, carboxyl, amide, or other reactive groups, and copolymers thereof. Outer layers may be applied and remain adherent to the substrate in water for an extended period. The bond coat may comprise cross linkers such as urea resins, melamines, isocyanates, and phenolics. Preferred polymers include vinylpyrrolidone-vinyl acetate, styrene acrylic polymer, ethylene acrylic acid copolymer, carboxyl function acrylic polymer, hydroxyl function acrylic polymer, and acrylic dispersion polymer. The coatings may be applied to inert metal or plastic surfaces of medical devices such as needles, guide wires, catheters, surgical instruments, equipment for endoscopy, wires, stents, angioplasty balloons, wound drains, arteriovenous shunts, gastroenteric tubes, urethral inserts, laparoscopic equipment, pellets, and implants.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: December 7, 1999
    Assignee: STS Biopolymers, Inc.
    Inventor: Richard J. Whitbourne
  • Patent number: 5997905
    Abstract: The present invention provides a core of predominately microcrystalline cellulose, on which an active drug is layered onto the core via solution coating. The coated particles have a narrower particle size distribution than coated granules provided by other processes. An optional final coating of a pharmaceutically acceptable polymeric coating is provided to provide tastemaking or controlled release, and protection of the drug-layered particles.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: December 7, 1999
    Assignee: McNeil-PPC
    Inventors: Daniel McTeigue, Indukumar G. Shah, Karen Swider, David W. Wynn
  • Patent number: 5985325
    Abstract: This invention provides rapamycin solid dosage unit which comprises a core and a sugar overcoat, said sugar overcoat comprising rapamycin, one or more sugars, and one or more binders.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: November 16, 1999
    Assignee: American Home Products Corporation
    Inventor: Arwinder S. Nagi
  • Patent number: 5968552
    Abstract: The invention relates to a pharmaceutical formulation comprising diltiazem hydrochloride. The formulation is in the form of a mixture of beads blended so as to provide a dissolution profile that renders the formulation suitable for oral administration once daily.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: October 19, 1999
    Inventor: Bernard Charles Sherman
  • Patent number: 5962024
    Abstract: The invention relates to a peroral composition providing controlled release of a drug, the composition comprising a) a core comprising the drug and a drug release controlling agent and b) an enteric coating comprising the drug release controlling agent, wherein the drug release controlling agent consists substantially of a pH-sensitive enteric polymer. Preferably the pH-sensitive enteric polymer has a pH dissolving point of at least 6.5. The composition is preferably in the form of granules. Preferably, the composition is in the form of enteric matrix granules coated with an enteric coating. The composition releases the drug gradually in the lower gastrointestinal tract. The composition is especially suitable for the administration of 3-(3-cyanophenyl)methylene-2,4-pentanedione into the colon.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: October 5, 1999
    Assignee: Orion-Yhtyma OY
    Inventors: Martti Lauri Antero Marvola, Esko Veikko Marttila, Reija Tuulikki Yrjola, Esa Petteri Lahdenpaa
  • Patent number: 5958459
    Abstract: Solid controlled-release oral dosage forms comprising a therapeutically effective amount of an opioid analgesic or a salt thereof which provide an extended duration of pain relief of about 24 hours, have a dissolution rate in-vitro of the dosage form, when measured by the USP Paddle Method of 100 rpm in 900 ml aqueous buffer at 37.degree. C. from about 12.5% to about 42.5% (by weight) active agent released after 1 hour, from about 25% to about 55% (by weight) active agent released after 2 hours, from about 45% to about 75% (by weight) opioid analgesic released after 4 hours and greater than about 60% (by weight) opioid analgesic released after 8 hours, the in-vitro release rate being substantially independent of pH and chosen such that the peak plasma level of active agent obtained in-vivo between about 2 and about 8 hours after administration of the dosage form.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: September 28, 1999
    Assignee: Purdue Pharma L.P.
    Inventors: Mark Chasin, Benjamin Oshlack, Frank Pedi, Jr.
  • Patent number: 5945124
    Abstract: An oral pharmaceutical composition of pantoprazole in pellet or tablet form, wherein the pantoprazole is at least partly in slow-release form, is distinguished, on combined administration with an antimicrobially-active ingredient, by an enhanced action of rapid onset against disorders caused by Helicobacter.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: August 31, 1999
    Assignee: BYK Gulden Chemische Fabrik GmbH
    Inventors: George Sachs, Rango Dietrich
  • Patent number: 5935602
    Abstract: The present invention is directed to a novel enteric-coated oral dosage form of a risedronate active ingredient comprised of a safe and effective amount of a pharmaceutical compostion which is comprised of a risedronate active ingredient and pharmaceutically-acceptable excipients. Said dosage forms prohibit the exposure of the risedronate active ingredient to the epichelial and mucosal tissues of the buccal cavity, pharynx, esophagus, and stomach and thereby protects said tissues from erosion, ulceration or other like irritation. Accordingly, the said dosage forms effect the delivery to the lower intestinal tract of said human or other mammal of a safe and effective amount of the risedronate active ingredient, and substantially alleviate the esophagitis or esophageal irritation which sometimes accompanies the oral administration of risedronate active ingredients.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: August 10, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Richard John Dansereau, Russell Youker Mosher, Douglas Wayne Axelrod, William Kendall Sietsema
  • Patent number: 5914132
    Abstract: The present invention relates to a pharmaceutical composition in a unit dosage form for peroral administration in a human or lower animal, having a gastrointestinal tract comprising a small intestine and a colon with a lumen therethrough having an inlet to the colon from the small intestine, comprising:a. a safe and effective amount of a therapeutically active agent incorporated into a compressed, bi-convex tablet, with a maximum diameter of about 4 mm to about 10 mm;b. a non-pH dependent smoothing coat applied to the tablet to provide a smooth tablet surface free from edges or sharp curves; andc. an enteric polymer coating material comprising at least one inner coating layer and only one outer coating layer;wherein the therapeutically active agent is released at a point near the inlet to, or within the colon; each of the inner coating layer(s) is an enteric polymer that begins to dissolve in an aqueous media at a pH between about 5 to about 6.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: June 22, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Gary Robert Kelm, Koji Kondo, Akio Nakajima
  • Patent number: 5912013
    Abstract: The present invention relates to a composition and method of treating a patient by administering carbamazepine in a pharmaceutical dosage form capable of maintaining the patient's blood concentration at from about 4 .mu.g/ml to about 12 .mu.g/ml over at least a 12 hour period, where the blood concentration of carbamazepine does not vary by more than 60 percent.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: June 15, 1999
    Assignee: Shire Laboratories, Inc.
    Inventors: Edward M. Rudnic, George W. Belendiuk, John McCarty, Sandra Wassink, Richard A. Couch
  • Patent number: 5908638
    Abstract: This invention relates to novel pharmaceutical compositions and methods for their preparation containing conjugated estrogens for the treatment of peri-menopausal, menopausal and post-menopausal disorders in women. The novel pharmaceutical compositions comprise a carrier base material and conjugated estrogens formed into a solid unit dosage form possessing a regular incremental release of the medicament upon oral administration. Further, the invention comprises the combination of conjugated estrogens with progestogens in a solid, shaped dosage unit. Specifically, the invention comprises the use of an organic excipient such as high molecular weight hydroxyalkyl alkylcelluloses. The use of an organic excipient such as hydroxypropylmethylcellulose in a stable, solid dosage formulation containing either conjugated estrogens alone or in combination with a progestogen is described.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: June 1, 1999
    Assignee: Duramed Pharmaceuticals, Inc.
    Inventors: Harold Eugene Huber, Mary Katherine Ryan
  • Patent number: 5888550
    Abstract: Provided are enteric coating compositions which utilize a low viscosity cellulose acetate phthalate polymer as a film former. The cellulose acetate phthalates have an inherent viscosity of about 0.2 to 0.6 dL/g and phthalyl values of from 30 to 40% and can be applied to solid oral medicaments with less solvent than conventional cellulose acetate phthalate polymers. Also provided is a process for preparing the low viscosity cellulose acetate phthalate polymers.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: March 30, 1999
    Assignee: Eastman Chemical Company
    Inventors: Phillip Michael Cook, Joseph Vaden Smith
  • Patent number: 5889028
    Abstract: A method is provided to treat inflammatory bowel disease by locally administering to the colon an effective amount of nicotine or a pharmaceutically acceptable salt thereof, preferably via formulations adapted for delayed oral release or rectal administration. Further provided is a novel formulation for the oral administration of nicotine comprising a polyacrylic polymer complexed with nicotine.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: March 30, 1999
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: William Sandborn, John Rhodes, Peter Rhodes, Brian Kenneth Evans
  • Patent number: 5885617
    Abstract: A dry moisture barrier film coating composition for forming a moisture barrier film coating for pharmaceutical tablets and the like comprises polyvinyl alcohol, soya lecithin, and optionally a flow aid, a colorant, and/or a suspending agent. A liquid coating solution or dispersion for forming a moisture barrier film coating for pharmaceutical tablets and the like comprises polyvinyl alcohol, soya lecithin, water, and optionally a flow aid, a colorant, and/or a suspending agent. A method of coating pharmaceutical tablets and the like with a moisture barrier film coating comprises forming a liquid coating solution or dispersion for forming a moisture barrier film coating for pharmaceutical tablets and the like comprising polyvinyl alcohol, soya lecithin, water, and optionally a flow aid, a colorant, and/or a suspending agent, applying the coating solution or dispersion onto the tablets to form a film coating on the tablets, and drying the film coating on the tablets.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 23, 1999
    Assignee: BPSI Holdings, Inc.
    Inventor: Martin Philip Jordan
  • Patent number: 5861173
    Abstract: This invention provides a long-lasting release solid nifedipine preparation which exhibits clinically sufficient effect when administered once per day. A press coated tablet whose core and shell each contains nifedipine, the dissolution rate of nifedipine from said tablet being (a) in the dissolution test using a sinker according to method 2 of the dissolution test method as prescribed by the Pharmacopoeia of Japan, after 2 hours 10-40% after 4 hours 30-65% after 6 hours at least 55%, and (b) in the dissolution test according to the disintegration test method as prescribed by the Pharmacopoeia of Japan, after 3 hours 20-45% after 4 hours 30-65%.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: January 19, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Takaaki Nishioka, Kenji Kuratani, Haruo Kanasaki, Helmut Luchtenberg, Ulrich Tenter, Andreas Ohm
  • Patent number: 5849327
    Abstract: Diseases of the colon are treated by oral ingestion of a unit dosage form containing a plurality of porous microscopic beads, the pores containing an active agent or drug and plugged with a polysaccharide that is chemically degradable by colon-specific bacteria. The dosage form further contains a coating of an enteric material that remains intact until the dosage form reaches the colon.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: December 15, 1998
    Assignee: Advanced Polymer Systems, Inc.
    Inventors: David L. Berliner, Sergio Nacht
  • Patent number: 5837291
    Abstract: An enteric preparation prepared by coating a solid dosage form with a fine powder enteric coating agent while spraying a liquid plasticizer.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: November 17, 1998
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Naosuke Maruyama, Hiroyasu Kokubo
  • Patent number: 5837379
    Abstract: A controlled release nifedipine tablet which comprises:(a) a homogeneous compressed core which comprises:(i) a medicament;(ii) a water soluble osmotic compound(iii) one or more osmotic polymers; and(b) a membrane coating which completely covers said core tablet which comprises a mixture of:(i) a water insoluble pharmaceutically acceptable polymer; and(ii) an enteric polymer.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: November 17, 1998
    Assignee: Andrx Pharmaceuticals, Inc.
    Inventors: Chih-Ming Chen, Joseph C. H. Chou
  • Patent number: 5837285
    Abstract: The object of the present invention is to provide a tablet that dissolves rapidly in the oral cavity (fast soluble tablets) that can be produced by a simple method without special preparation technology. The present invention is a fast soluble tablet which comprises two features: 1 the tablet base component is a sugar alcohol or the like, and 2 a kneaded mixture of a drug and a sugar alcohol or the like is subjected to compressive shaping prior to drying in the process when compressive shaped for preparing tablets by wet granulation. The fast soluble tablet of the present invention can be produced by a modification of the conventional tableting method, and possesses sufficient physico-chemical stability.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: November 17, 1998
    Inventors: Kouichi Nakamichi, Shogo Izumi, Hiroyuki Yasuura
  • Patent number: 5830503
    Abstract: A once-a-day diltiazem dosage form which comprises: (a) a core element which is a compressed tablet which contains a therapeutic dose of diltiazem and an amount of a solubility modulating substance that controls the release of said diltiazem in order to provide a therapeutic level over a period of about 24 hours; and (b) on the outer surface of the core element, a sufficient amount of an enteric coating that causes the diltiazem to release at a rate that permits the use of once-a-day dosing to maintain steady state therapeutic levels of diltiazem.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: November 3, 1998
    Assignee: Andrx Pharmaceuticals, Inc.
    Inventor: Chih-Ming Chen
  • Patent number: 5814336
    Abstract: The present invention relates to a pharmaceutical composition in a unit dosage form for peroral administration in a human or lower animal, having a gastrointestinal tract comprising a small intestine and a colon with a lumen therethrough having an inlet to the colon from the small intestine, comprising:a. a safe and effective amount of a therapeutically active agent incorporated into or coated on the surface of a dosage form selected from the group consisting of a spherical substrate, an elliptical substrate, a hard capsule, or a compressed tablet, with a maximum diameter of about 3 mm to about 10 mm; andb. an enteric polymer coating material;wherein the dosage form has a smooth surface free from edges or sharp curves; the elliptical substrate and the hard capsule have a ratio of the long to short diameters of no greater than about 1.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: September 29, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Gary Robert Kelm, Gary Lee Manring
  • Patent number: 5814339
    Abstract: The present invention is concerned with a film coated tablet comprising as active ingredients the analgesic agent paracetamol and the antiemetic agent domperidone, and with a process of preparing such tablets.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: September 29, 1998
    Assignee: Janssen Pharmaceutica, N.V.
    Inventor: Gordon Prudhoe
  • Patent number: 5807576
    Abstract: The present invention comprises a tablet, and method for making such, which disintegrates or dissolves in a matter of just a few seconds once placed into the oral cavity. Generally, the method of the present invention comprises up to four steps. First, a porous particulate powder which will serve as the tablet support matrix is produced. In the second step, the pharmaceutical, for example an antihistamine, decongestant, or antibiotic is combined with the powder. Other additives may also be added to the mixture. In the third step the mixture is formed into a tablet. Finally, in the fourth step, a coating may be applied to the outer surface of the tablet to enhance the intactness and durability of the tablet.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: September 15, 1998
    Assignees: The Board of Regents of the University of Oklahoma, Janssen Pharmaceutica, Inc.
    Inventors: Loyd V. Allen, Jr., Bingnan Wang, John Desmond Davies
  • Patent number: 5807579
    Abstract: A pharmaceutical tablet composition for oral administration containing pseudoephedrine pellets admixed with a tablet mixture containing a second active drug substance, either alone or in combination with pseudoephedrine or a pharmaceutically acceptable salt thereof, is disclosed. The pellets provide an extended release of pseudoephedrine, whereas the tablet mixture provides an immediate release of the second active drug and any pseudoephedrine.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: September 15, 1998
    Assignee: F.H. Faulding & Co. Limited
    Inventors: Zalman Vilkov, David John Willoughby, Eugene Quinn
  • Patent number: 5798120
    Abstract: The present invention relates to enteric granule-containing tablets which are prepared by tabletting a mixture of enteric granules containing an active agent, with one or a combination of 2 or more compounds selected from synthetic hydrotalcite, dried aluminum hydroxide gel, aluminum hydroxide/sodium hydrogen carbonate coprecipitate, alumina hydroxide/magnesium, synthetic aluminum silicate and dihydroxyaluminumamino acetate. The invention provides high-strength tablets which are formulated with specific excipients which allow a higher enteric granule content, faster dispersion in the enteric granules, no loss of drug elution properties or acid resistance of the enteric granules upon tabletting, with less damage in the coating and low weight variation of the tablets during tabletting, as compared to tablets containing coated granules according to the prior art.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: August 25, 1998
    Assignee: Tokyo Tanabe Company Limited
    Inventors: Matsushita Tomohisa, Hashimoto Mitsuo
  • Patent number: 5788987
    Abstract: The present invention provides methods of treating early morning pathologies using a time-specific controlled release dosage formulation which is administered prior to sleep, and which permits or achieves delivery of a pharmaceutically active agent effective for the treatment of the specific early morning pathology to be treated, at about the time of awakening. The time-specific controlled release dosage formulation comprises (1) a core including the pharmaceutically active agent(s) effective for the treatment of the early morning pathology, and (2) a swellable polymeric coating layer substantially surrounding the core. The swellable polymeric coating layer delays the release of the pharmaceutically active agent from the core for a predetermined period of time dependent upon the thickness of the swellable polymeric coating layer, to effect delivery of the pharmaceutically active agent at about the time of awakening.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: August 4, 1998
    Assignee: Poli Industria Chimica SpA
    Inventors: Cesare Busetti, Tiziano Crimella
  • Patent number: 5783193
    Abstract: An orally administrable therapeutic protein is provided by combining the therapeutic protein with a stabilizing agent in an aqueous solution. The solution is coated onto nonpareils and microencapsulated with a water emulsifiable enteric coating composition. The microcapsules are orally administered. The coating protects the protein as it passes through the stomach. Upon reaching the small intestines, the basic pH of the intestinal juices will dissolve the coating, allowing the protein to be released and induce antigen specific immune response which has the specificity of the native molecule. The stabilizing agent protects the therapeutic protein from denaturation during the encapsulation process.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 21, 1998
    Assignee: The University of Cincinnati
    Inventors: J. Gabriel Michael, Allen Litwin
  • Patent number: 5783212
    Abstract: The present invention pertains to a controlled release pharmaceutical tablet having at least three layers, two barrier layers and one drug layer. The two barrier layers erode more quickly than the drug layer. All layers are formed from swellable, erodible polymers. The drug layer can have a different composition from the two barrier layers. The three layers can also differ in thickness. The pharmaceutical agent is contained in the drug layer and is released as the tablet layer swells to allow diffusion through the tablet layers, and as the layers erode. The barrier layers are made from swellable erodible polymers which erode away to reveal more of the drug layer, as the tablet dissolves.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: July 21, 1998
    Assignee: Temple University--of the Commonwealth System of Higher Education
    Inventors: Reza Fassihi, Libo Yang
  • Patent number: 5780057
    Abstract: A description is given of a pharmaceutical form for oral administration consisting of a two- or three-layers tablet, wherein at least one layer can rapidly swell by contact with biological and/or aqueous fluids, said swelling resulting in a considerable increase in the tablet volume. Said phenomenon determines a prolonged residence of the pharmaceutical form at the gastric level and therefore allows a slow release of the active ingredient from said pharmaceutical form to the stomach and/or the first tract of the intestine.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: July 14, 1998
    Assignee: Jagotec AG
    Inventors: Ubaldo Conte, Lauretta Maggi
  • Patent number: 5762963
    Abstract: Methods and compositions are provided for the oral delivery of temporally increasing concentrations of capsaicin, its derivatives, and analogs (collectively, "capsaicinoids"), to provide oral or pharyngeal analgesia while minimizing sensations of nausea and burning associated with the oral administration of capsaicinoids. The methods and compositions described herein soothe and relieve oral or pharynx pain. In one embodiment, one or more capsaicinoids are dispersed within a lollipop, with successively decreasing concentrations of capsaicin from the center out to the periphery, and administered to a patient in need of amelioration of oral pain. Alternatively, the capsaicinoid can be dispersed, with decreasing concentrations from the center to the periphery, in a tablet, caplet, lozenge, troche, pill, candy, or similar formulation.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 9, 1998
    Assignee: Emory University
    Inventor: Michael G. Byas-Smith
  • Patent number: 5753265
    Abstract: A new pharmaceutical multiple unit tableted dosage form containing as active ingredient an acid labile H.sup.+ K.sup.+ -ATPase inhibitor or an alkaline salt thereof or one of its single enantiomers or an alkaline salt thereof, a method for the manufacture of such a formulation, and the method of treatment with such a formulation in medicine.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: May 19, 1998
    Assignee: Astra Aktiebolag
    Inventors: Pontus John Arvid Bergstrand, Kurt Ingmar Lovgren
  • Patent number: 5738874
    Abstract: Pharmaceutical tablet consisting of a first layer containing one or more drugs with immediate or controlled release formulation, a second layer containing one or more drugs, either equal to or different from the first layer, with slow release formulation, and a low-permeability barrier-type layer coating said second layer or, alternatively, placed between the first and second layer and, if necessary, containing a drug.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: April 14, 1998
    Assignee: Jagotec AG
    Inventors: Ubaldo Conte, Aldo La Manna, Lauretta Maggi
  • Patent number: 5734006
    Abstract: This invention relates to a coprecipitated binder composition used for the compression of pharmaceutically and agriculturally active components to provide a non-friable pill or tablet of increased hardness with remarkably improved rate of dissolution and improved stability in aqueous solution. The invention also relates to the process for preparing the binder and to its incorporation in a formulation with the active ingredient.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: March 31, 1998
    Assignee: ISP Investments Inc.
    Inventor: Kolazi S. Narayanan
  • Patent number: 5731002
    Abstract: A stable, oral pharmaceutical composition comprising a proton pump inhibitor and a gelling agent designed for the treatment of gastric acid related diseases in animals, the process for preparation of the composition and the use thereof.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: March 24, 1998
    Assignee: Astra Aktiebolag
    Inventors: Stig-Goran Arthur Olovson, .ANG.ke Gunnar Pilbrant
  • Patent number: 5725880
    Abstract: A pharmaceutical preparation for oral administration which is controlled to release a medicinal active ingredient at a targeted site in the intestinal tract comprising (a) a core containing a medicinal active ingredient and (b) a press-coated layer comprising an enteric polymer, said layer being provided around the core. In the pharmaceutical preparation of the present invention, the medicinal active ingredient is not released during residence in the stomach and, after discharged from the stomach, until reaching a targeted site in the intestine, and thereafter is quickly released, so that the medicinal active ingredient is efficiently delivered to the targeted site in the intestinal tract.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 10, 1998
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Yoshiyuki Hirakawa, Hiroyuki Yoshino, Eiji Fukui, Tami Hanamori
  • Patent number: 5723151
    Abstract: Provided are enteric coating compositions which utilize a low viscosity cellulose acetate phthalate polymer as a film former. The cellulose acetate phthalates have an inherent viscosity of about 0.2 to 0.6 dL/g and phthalyl values of from 30 to 40% and can be applied to solid oral medicaments with less solvent than conventional cellulose acetate phthalate polymers. Also provided is a process for preparing the low viscosity cellulose acetate phthalate polymers.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: March 3, 1998
    Assignee: Eastman Chemical Company
    Inventors: Phillip Michael Cook, Michael Wayne Adams, Joseph Vaden Smith
  • Patent number: 5721026
    Abstract: Aqueous silicone dispersions crosslinkable into elastomeric state on removal of water therefrom under ambient conditions, well adapted, e.g., for the production of elastomeric silicone seals in the construction industry, include an oil-in-water base emulsion (A) of an .alpha.,.omega.-(dihydroxy) polydiorganosiloxane stabilized with at least one anionic or nonionic surface-active agent, or mixture thereof, (B) an aqueous latex of an organic (co)polymer having a particle size ranging from 0.01 to 0.5 .mu.m and a solids content ranging from 20% to 70% by weight, (C) an effective crosslinking amount of at least one crosslinking agent, (D) an effective amount of at least one nonsiliceous filler material, and (E), optionally, a catalytically effective amount of a metal curing catalyst, such aqueous dispersions further having a solids content of at least 40% by weight.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: February 24, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Michel Feder, Jean-Pierre Jaubert, Jean-Marie Pouchol
  • Patent number: 5705189
    Abstract: Thermoplastic materials which comprise a copolymer of(A) 16 to 40 wt % of acrylic and/or methacrylic acid;(B) 30 to 80 wt % of methyl acrylate; and(C) 0 to 40 wt % of another alkyl ester of acrylic and/or methacrylic acid and perhaps conventional auxiliaries for drug coatings are suitable for the production of drug coatings which are soluble in intestinal juices, such as tablet coatings, dies, films, capsules, or multipart dosage units.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: January 6, 1998
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Klaus Lehmann, Werner Hoess
  • Patent number: 5693340
    Abstract: A novel delayed-release form for pharmaceutical active compounds, characterized by a core containing the active compound and a diffusion-inhibiting, adhesive coating layer having a thickness in the range from 0.01 to 10 .mu.m, consisting of a chemical network which has been applied to the support in a plasma-assisted chemical deposition process, and a process for its production are described.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: December 2, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Harth, Hartmut Hibst, Juergen Dembowski, Reinhard Spengler, Ernst Flaig