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 obtain the subject complex capable of releasing hydrogen peroxide from a complex and controlling decomposition of the complex and having wide acting spectrum by carrying out binding among hydrogen peroxide, a polymer suitable for formation of the complex with the hydrogen peroxide and a metal colloid. SOLUTION: This complex contains (A) hydrogen peroxide, (B) a polymer suitable for formation of a complex with the component A and (C) a metal colloid or a metal salt (preferably silver colloid or a silver salt) as main components. A polymer comprising 35-80wt.% N-vinyl lactam and 20-65wt.% comonomer is preferably used as the component B. N-Vinylpiperidone, N- vinylcaprolactam, etc., is preferably used as the N-vinyllactam. N- Vinylheterocyclic compound such as vinylimidazole is preferably used as the comonomer. Furthermore, the complex preferably contains 6-15wt.% component A, 83-94wt.% component B and 0.01-2wt.% component C.
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 produce a novel creatine containing solid administration by a melt calendering. SOLUTION: This creatine-containing solid administration form is produced by (a) preparing a mixture containing at least one of high-molecular weight binders having thermoplastic physiologically permissible water-solubility or water-swelling property, creatine and water of 1-20 mol based on 1 mol of creatine, (b) plasticizing this mixture at the softening point of the high-molecular weight binders or over this softening point and (c) molding the plasticized mixture to the administration form and cooling.
Abstract:
PROBLEM TO BE SOLVED: To prepare solid preparations where a high molecular weight polymeric binder can be employed and the delayed release of an active ingredient is made possible by producing a plastic mixture of a specific polymeric binder, medicament active principle or the like under a specific condition and by molding the mixture so as to have a necessary dosage form. SOLUTION: The objective preparations are prepared by producing a plastic mixture of at least one kind selected from pharmaceutically acceptable polymeric binders having >75 K value (preferably homopolymer or a copolymer from vinylpyrrolidone) and at least one kind selected from medicament active principles, (e.g. ibuprofen or the like) and, optionally, a customary adjuvant under the condition of temperature (preferably
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:
Production of solid medicament comprises mixing and melting at least one polymeric binder, at least one pharmaceutical active agent (A) and optionally conventional additives, in the absence of solvents, to give a plastic mixture and shaping the mixture by extrusion. The shaping is carried out in two stages: (i) dividing the extrudate into shaped articles; and (ii) rounding the articles while in a plastic state.