Abstract:
본 발명은 약리학적 활성 성분을 포함하는 매트릭스; 및 상기 매트릭스 상에 서방성 막 형성 물질을 포함하는 서방성층을 포함하는 서방성 미립자에 관한 것이다. 본 발명의 서방성 미립자는 효과적인 약물의 이중 방출 제어가 가능할 뿐만 아니라, 적은 양의 코팅물질을 사용하는 경우에도 우수한 용출 특성을 나타낼 수 있다.
Abstract:
본 발명에 따른 아데포버 디피복실의 결정형은, 에틸알코올 용제화형인 것을 특징으로 한다. 이러한 아데포버 디피복실의 결정형의 제조방법은, 아데포버 디피복실을 무수 에틸알코올에 용해하는 공정, 및 용해 공정에 의해 얻어진 아데포버 디피복실 용액을 냉각 교반하여 결정을 형성시키는 공정을 포함한다. 본 발명에 따른 아데포버 디피복실의 결정형은, 용해도와 용해속도가 빠르고, 생체 안전성이 우수하며, 의약분야 등에서 폭넓은 활용이 가능하다.
Abstract:
아데포버 디피복실(adefovir dipivoxil)의 결정형 L의 제조방법으로서, 아데포버 디피복실의 이소프로필알코올 또는 아세트산에틸 용액에 항용매를 첨가하고 교반하여 결정을 생성시키는 방법에 개시되며, 이러한 제조방법에 따르면, 기존에 알려진 방법 보다 훨씬 온화한 조건에서 목적하는 아데포버 디피복실의 결정형 L을 균일하고 적절한 크기로 용이하게 얻을 수 있다.
Abstract:
PURPOSE: An aminoacid composition containing branched amino acid is provided to shield include a bitter taste or inherent smell of branched chain amino acid by including a polymer compound containing a carboxyl group. CONSTITUTION: An aminoacid composition comprises a branched aminoacid, and a polymer compound containing carboxy group. The branched amino acid comprises one or more selected from a group consisting of isoleucine, leucine and valine. The polymer compound containing a carboxy group comprises one or more selected from a group consisting anionic polymethacrylic acid copolymer, cellulose acetate phthalate, polyvinyl acetate phthalate and hydroxypropyl methylcellulose phthalate.
Abstract:
PURPOSE: A crystalline form of adefovir dipivoxil, and a virus infection prevention and treatment pharmaceutical composition containing thereof are provided to secure the excellent living-body safety, solubility and dissolution velocity. CONSTITUTION: A crystalline form of adefovir dipivoxil is in a form of an ethyl alcohol solvent containing 0.3~0.7 equivalent of ethyl alcohol within the crystal lattice. The crystalline form of the adefovir dipivoxil has peaks of when measuring by the X-ray powder diffraction method at the 2 theta diffraction angle. The melting point of the crystalline form of the adefovir dipivoxil is 64~68 deg C and 76~80 deg C. A virus infection prevention and treatment pharmaceutical composition includes the crystalline form of the adefovir dipivoxil.
Abstract:
PURPOSE: A method for manufacturing a crystalline L of adeforvir dipivoxil is provided to easily obtain the crystalline L of adeforvir dipivoxil of proper and same size. CONSTITUTION: A method for manufacturing a crystalline L of adeforvir dipivoxil comprises a step of adding anti-solvent in a solution. The solution is isopropyl alcohol or acetic acid ethyl. The solution is used two times as adefovir dipivoxil in weight to volume.
Abstract:
PURPOSE: A sustained release fine particle containing a matrix containing pharmaceutically active ingredients and a sustained release layer is provided to ensure excellent elution effect. CONSTITUTION: A sustained release fine particle comprises: a matrix containing pharmacologically active ingredients; and a sustained release layer containing a sustained release membrane forming material on the matrix. The sustained release membrane forming material is a water insoluble polymer, enteric polymer, soluble polymer, or mixture thereof. The insoluble polymer is ethyl cellulose, cellulose ether, acrylic acid ethyl-methacrylic acid methyl-methacrylic acid trimethyl ammonium ethyl chloride copolymer, polyvinyl acetate, and acrylic acid ethyl-methacrylic acid methyl copolymer or dispersion solution thereof. The soluble polymer is hydroxypropyl cellulose, hydroxypropyl methyl cellulose, polyvinyl pyrolidone, or polyvinyl alcohol. The matrix further contains an excipient or binder.
Abstract:
PURPOSE: A method for manufacturing a solid oral formulation containing valsartan is provided to effectively obtain an oral formulation having excellent disintegration force and dissolution rate. CONSTITUTION: A method for manufacturing a solid oral formulation containing valsartan comprises: a step of contacting valsartan and pharmaceutically acceptable additive with binding solution; a step of drying resultant; a step of granulating the dried resultant; and a step of mixing the granule with disintegrant and lubricant. The binding solution is water, or mixture of water and ethanol. The disintegrant is crospovidone.