Abstract: The resent invention relates to biodegradable microspheres having a diameter of 1-2000 ?m comprising cross-linked hydrolysed starch onto which at least one type of ligand has been coupled via a carboxylic ester bond. The ligand shall be an endogenous, charged molecule with a molecular mass of less than 1000 Da comprising at least one additional carboxylic acid function in addition to the one utilised for coupling the ligand to the micro-sphere and/or at least one amine function. On average 0.05-1.5 ligands are coupled to each glucose moiety in the hydrolysed starch.

Abstract: Biodegradable microspheres having a diameter of 10-2000 ?m having cross-linked hydrolysed starch onto which at least one type of ligand has been coupled via a carboxylic ester bond. The ligand shall be an endogenous, charged molecule with a molecular mass of less than 1000 Da having at least one additional carboxylic acid function in addition to the one utilised for coupling the ligand to the microsphere and/or at least one amine function. On average 0.05-1.5 ligands are coupled to each glucose moiety in the hydrolysed starch.

Abstract: Biodegradable microspheres having a diameter of 10-2000 ?m having cross-linked hydrolysed starch onto which at least one type of ligand has been coupled via a carboxylic ester bond. The ligand shall be an endogenous, charged molecule with a molecular mass of less than 1000 Da having at least one additional carboxylic acid function in addition to the one utilised for coupling the ligand to the microsphere and/or at least one amine function. On average 0.05-1.5 ligands are coupled to each glucose moiety in the hydrolysed starch.

Abstract: The present invention concerns an extended release formulation having an accelerating erosion and/or dissolution rate of the surface of the formulation. The formulation comprises a drug having low solubility in water dispersed or dissolved in at least one erasable hydrophilic polymeric matrix.

Abstract: The invention concerns a method for producing a controlled-release pharmaceutical preparation with a particle-containing coating, the coating being derived from an aqueous dispersion of a film-forming water insoluble polymer and a water soluble pore-forming agent. By suspending, instead of dissolving the pore-forming agent, the resulting coating will contain particles of pore-formers with a predetermined size that creates, when disintegrated or dissolved in the body fluid, canals or a network of pores through the polymer film.

Abstract: The invention concerns a method for producing a controlled-release pharmaceutical preparation with a particle-containing coating, the coating being derived from an aqueous dispersion of a film-forming water insoluble polymer and a water soluble pore-forming agent. By suspending, instead of dissolving the pore-forming agent, the resulting coating will contain particles of the pore-formers with a predetermined size that creates, when disintegrated or dissolved in the body fluid, canals or a network of pores through the polymer film. Due to this network, the film will get a good mechanical stability and are left intact after the release of the drug.

Abstract: The present invention relates to a method for releasing an active substance from a composition. The active substance is either substantially water-insoluble and/or immobilised on or in nanosized particles. A diffusion gradient is established between the inside and the outside of the composition, which allows the transport of a nanosuspension of the active substance through the pores of the membrane.

Abstract: The present invention concerns an extended release formulation having an accelerating erosion and/or dissolution rate of the surface of the formulation. The formulation comprises a drug having low solubility in water dispersed or dissolved in at least one erodable hydrophilic polymeric matrix.

Abstract: The present invention concerns an extended release formulation having an accelerating erosion and/or dissolution rate of the surface of the formulation. The formulation comprises a drug having low solubility in water dispersed or dissolved in at least one erodable hydrophilic polymeric matrix.

Abstract: The invention concerns a method for producing a controlled-release pharmaceutical preparation with a particle-containing coating, the coating being derived from an aqueous dispersion of a film-forming water insoluble polymer and a water soluble pore-forming agent. By suspending, instead of dissolving the pore-forming agent, the resulting coating will contain particles of the pore-formers with a predetermined size that creates, when disintegrated or dissolved in the body fluid, canals or a network of pores through the polymer film. Due to this network, the film will get a good mechanical stability and are left intact after the release-of the drug.

Abstract: A method of preparing parenterally administrable sustained release microparticles, which comprises preparing core particles in an aqueous medium that is essentially free from organic solvent, a biologically active substance being entrapped therein during or after said preparation, drying the core particles and coating the same with a release-controlling polymer by air suspension technique so as to create a shell on the core particles without any detrimental exposure of the active substance to organic solvent. Microparticles obtainable by such a method also are provided.