Disclosed is an aqueous composition containing (a) an ethyl acrylate/methyl methacrylate copolymer or a plasticized vinyl accetate polymer, (b) an ethyl cellulose, (c) a water soluble additive for pharmaceutical products, (d) titanium oxide and (c) water. The solid content mass ratio among the components (a), (b), (c) and (d), namely a:b:c:d is 100:(5-50):(1-50):(0.5-10), and the solid content concentration in the aqueous composition is 0.5-40% by mass.
An object of this invention is to provide a method of dislocating the crystalline condition of crystalline medicine simply, speedily and homogeneously, and, moreover, in large quantities at once. This invention is directed to a method using an extruder when crystalline medicine in a certain crystalline condition (△ is dislocated to another crystalline condition (○), i.e., when the dislocation of crystalline condition (△->○) is carried out.
A medical device having both physiological and antimicrobial activity, comprising a base material, a cross-linked coating film formed on a surface of the base material, and each of a physiologically active substance and an antimicrobial substance bonded to the coating film. Also disclosed is a method for producing the medical device, which comprises providing a base material, forming a cross-linked coating film comprising the reaction product of a high molecular weight substance having acid anhydride groups and a compound having two or more active hydrogen atoms on a surface of the base material, and subsequently bonding each of a physiologically active substance and an antimicrobial substance to the coating film.
Drug carriers that includes a drug, being very high in targeting capability at a diseased site such as an inflammatory site or a tumor site where pH has been decreased in acidic regions. A liposome, comprising as membrane constituents [1] a basic compound, [2] an acidic compound which is a phosphoric acid monoester derivative, or a compound having a carboxyl group or its salt, and [3] other liposome constituent.
SPHERICAL CRUDE GRANULE AND METHOD FOR PRODUCTION THEREOF
申请人:Asahi Kasei Chemicals Corporation
公开号:EP2050438A1
公开(公告)日:2009-04-22
The characteristic in being coated with film of spherical elementary granules is improved by adjusting a short/long diameter-ratio distribution coefficient to a specific value.