Abstract:
PROBLEM TO BE SOLVED: To obtain a preparation capable of satisfying both to rapidly raise the level of an active ingredient and to slowly release the active ingredient by including opioids in two or more solid phases, respectively, and specifying the releasing amounts of the opioids. SOLUTION: A solid material comprising two or more phases is formed, and at least one kind of opioid is added to the matrix of each phase. The releasing amount (measured by the detection of UV light at 270nm by a ph. Eur. paddle method at 100rpm in a 0.1 hydrochloric acid at 37 deg.C) in a test tube is controlled to >=50wt.% after 1hr. The releasing amount is preferably controlled to 55-80wt.% after 1hr, 58-85wt.% after 2hr, 60-95wt.% after 4hr, and 65-100wt.% after 8hr. The two or more phases are preferably divided into rapidly releasing phases and slowly releasing phases in dependence on the differences of the individual matrix compositions. The opioid is preferably hydromorphone, morphine, tramadol, etc.
Abstract:
PROBLEM TO BE SOLVED: To embody an easy and cost effective process for producing solid medicine moldings particularly to specified shapes by dividing extrudate to molded goods in a first stage and rounding these molded goods in a plastic state in a second stage. SOLUTION: A mixture composed of a polymer/active component for production of tablets is produced by a simultaneously rotating two-screw extrusion molding machine. The plastic compsn. is extruded and is received by a circulating belt conveyor. A sensor operates a cutting device when the sensor checks the start point of the extrudate. The columnar molded goods 13 are temporarily stored in a collector 18 and are, in succession, supplied through a drilling slide gate 20 to a rounding tool 21. An arc-shaped driver 22 supports and moves the molded goods 13 during this time and rotates the molded goods round the longitudinal axis. The flat ends of the molded goods pass the heated rounding tool during this time. Two metallic jaws are moved in the same direction as the direction of the longitudinal axis of the molded goods 13 and the center of the dents of the segment type of a spherical shape is arranged on the longitudinal axis.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a salt of a pharmaceutically active material without lowering a quality, especially fluidity by reacting an acid with a base in a molten liquid so that the acid may be reacted with at least stoichiometric amount of the base in an extruder. SOLUTION: The objective salt of a pharmaceutically active material is obtained by reacting (A) a carboxylic acid with (B) a base in a molten liquid so that the acid may be reacted with at least stoichiometric amount of the base in an extruder. The method is preferably used for production of a salt of a derivative of salicylic acid, e.g. acetylasalicylic acid, or an arylcarboxylic acid, e.g. diclofenac, tolmetin or zomepirac. A basic α-aminocarboxylic acid, especially ricin, a base of an alkali(ne earth) metal, etc., are preferable as the component B. The amount of the above base is at least stoichiometric amount, preferably 1-40mol% excess based on the acid.
Abstract:
PROBLEM TO BE SOLVED: To manufacture a solid blended medicine shape in a large variation width by housing a solid preparation in a plastic material, and containing a single active substance in melt and/or the preparation when a medicine shape is molded from the melt composed of a high molecular weight binding agent. SOLUTION: Melt composed of a high molecular weight binding agent (for example, alkyl cellulose, hydroxyalkyl cellulose or the like) and an-active substance is molded. When this is molded, a single solid preparation containing the active substance is put in a plastic material. In a molding process, metal mold rollers 1 and 2 are rotated in the opposite direction, and a strand 3 from an extruder is composed of an active substance containing high molecular weight binding agent, and is sent into the two rollers 1 and 2 in the arrow direction. At the same time, melt composed of an active substance containing high molecular weight binding agent B is sent into a recess of the roller 1 from a supply device 4. Since the roller 1 is cooled, the melt immediately coagulates. A tablet is punched from the strand 3 by opposite directional rotation of the rollers 1 and 2.
Abstract:
Verfahren zur Herstellung von Salzen von Säuregruppen tragenden pharmazeutischen Wirkstoffen durch Umsetzung der Carbonsäuren mit einer Base in der Schmelze, indem man die Säuren mit einer mindestens stöchiometrischen Menge einer Base im Extruder umsetzt.
Abstract:
PROCEDIMIENTO PARA LA FABRICACION DE SALES DE SUSTANCIAS ACTIVAS FARMACEUTICAS QUE LLEVAN GRUPOS ACIDOS MEDIANTE TRANSFORMACION DE LOS ACIDOS CARBONICOS CON UNA BASE EN LA FUSION, TRANSFORMANDO LOS ACIDOS CON UNA CANTIDAD ESTEQUIMETRICA COMO MINIMO DE UNA BASE EN LA EXTRUSIONADORA.
Abstract:
The present invention relates to a process for preparing solid multilayer medicaments for oral or rectal administration, which preparation process comprises a) preparation of a first and a second mixtures, each first and second mixture contains thermoplastic and pharmacologically acceptable polymer binding agent that is soluble or swelling in a physiological medium and the first or the second or both the mixtures contain a pharmaceutically active component b) softening or grinding the first and second mixtures, c) passage of the first and second mixtures through a common co-extrusion die, d) extrusion of the first and second mixtures to obtain a co-extruded multilayer material and e) moulding of the co-extruded multilayer material to a desired medicament form.
Abstract:
PCT No. PCT/EP96/01021 Sec. 371 Date Sep. 16, 1997 Sec. 102(e) Date Sep. 16, 1997 PCT Filed Mar. 9, 1996 PCT Pub. No. WO96/29053 PCT Pub. Date Sep. 26, 1996Transparent rapid release active substance compositions obtainable by extrusion of melts, containing non-steroidal analgesics, homopolymers of N-vinylpyrrolidone, saccharides or sugar alcohols and sodium or potassium salts.
Abstract:
The invention relates to solid drug forms obtainable by extrusion with subsequent shaping of a solvent-free melt, comprising, besides one or more active ingredients,A) 10-90% by weight of a melt-processable, water-soluble polymer,B) 5-85% by weight of isomalt, andC) 0-5% by weight of lecithin,where the total of all the ingredients is to be equal to 100% by weight.