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36results about How to "The composition of the prescription is simple" patented technology

Indissolvable drug oral sustained-release dry emulsion tablet and preparation method thereof

The invention belongs to the field of medicinal preparations, and discloses an indissolvable drug oral sustained-release dry emulsion tablet and a preparation method thereof. The preparation method for the oral sustained-release dry emulsion tablet comprises the steps that after an oil phase, a surface active agent and cosurfactant are evenly mixed, an indissolvable drug is added till the drug is dissolved completely, and accordingly a medicine-carried self-emulsifying system is prepared; after the medicine-carried self-emulsifying system and an aqueous solution of a hydrophilic gel framework material are evenly mixed, spray drying is conducted, and sustained-release dry emulsion powder is obtained; after the sustained-release dry emulsion powder and a conventional tablet auxiliary material needed for preparation are mixed, wet granulation is carried out; at last, tabletting is performed. The sustained-release dry emulsion tablet can improve the dissolution and dissolving-out performance of the indissolvable drug, the bioavailability of the indissolvable drug is improved, a stable blood concentration is formed, and the compliance of patients is improved. The sustained-release dry emulsion tablet is not complex in composition of prescription, and the preparation technology is suitable for industrial production.
Owner:CHINA PHARM UNIV

Effervescent tablets containing stiripentol solid dispersion and preparation method thereof

ActiveCN113813234AEasy to acceptThere are no problems such as easy cakingPowder deliveryNervous disorderEffervescent tabletSmall intestine
The invention belongs to the field of pharmaceutical preparations, and particularly relates to effervescent tablets containing a stiripentol solid dispersion and a preparation method thereof. According to the effervescent tablets disclosed by the invention, in one aspect, an indissolvable drug is prepared into an amorphous solid dispersion, so that the defect that the permeability of gastrointestinal tracts is reduced by other solubilizing means is overcome while the water solubility and the dissolution rate are improved, and the effervescent tablets have relatively high encapsulation efficiency (16.67%-50%); in the other aspect, a common, easily available and safe enteric-coated material is selected as a solid dispersion carrier to ensure that the stiripentol is released in the small intestine in a positioned manner and cannot be dissociated in advance in a physiological solution to cause damage of gastric acid to medicine like other preparation means; and besides, compared with commercially available dosage forms (capsules and dry suspensions), the effervescent tablets overcome the problem that the content is easy to cake, and has the advantages of stable storage, convenience in taking, good taste, particular suitability for epilepsy children who cannot swallow solid preparations, and the like.
Owner:CHINA PHARM UNIV

Arctiin compound entrapped local skin external preparation based on solid particle emulsification technology and preparation method and application of arctiin compound entrapped local skin external preparation

The embodiment of the invention relates to the field of preparations, in particular to an arctiin compound entrapped local skin external preparation based on a solid particle emulsification technology and a preparation method and application of the arctiin compound entrapped local skin external preparation. The arctiin compound entrapped external preparation provided by the embodiment of the invention comprises the following components in parts by weight: 1-15 parts of arctiin or arctigenin, 0.5-10 parts of a solid particle emulsifier, 10-40 parts of an oil phase, 5-30 parts of a solubilizer and 1-10 parts of a thickening agent, wherein the particle size of the solid particle emulsifier is nanometer or micrometer. According to the arctiin compound entrapped external preparation provided by the embodiment of the invention, the arctiin compound forms a stable and efficient system through the solid particle emulsifier, and can stably release medicine in the medication process. In addition, compared with a traditional emulsion, the external preparation also enhances the skin permeability and retention property of the arctiin compound, and shows better pharmacological activity and curative effect.
Owner:SHANGHAI INST OF MATERIA MEDICA CHINESE ACAD OF SCI +1
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