131 results about "Sodium stearyl fumarate" patented technology

Pharmaceutical tablets comprising clopidogrel bisulfate and a lubricant selected from zinc stearate, stearic acid, and sodium stearyl fumarate.

The invention discloses lenalidomide composition tablets and a preparation method thereof. The tablets comprise components in percentage by weight as follows: 10%-18% of lenalidomide crystals, 28%-40% of lactose, 28%-40% of microcrystalline cellulose, 1%-5% of konjac glucomannan, 10%-15% of beta-cyclodextrin, 5%-10% of sodium carboxymethyl starch, 0.5%-1.5% of sodium stearyl fumarate and 0.5%-1.5% of powdered cellulose. The preparation technology of the lenalidomide composition tablets is stable, simple and easy to operate, technological parameters are reliable, and the production cycle is shorter; experimental research shows that the lenalidomide raw material is stable in crystal form, higher in purity and capable of meeting the quality requirement of final products; the synthesis technology is concise, stable, feasible and applicable to mass production; the quality is controllable, the stability is better, and the lenalidomide raw material is unchanged under conditions of affecting factors such as the high temperature, high humidity and 10 days of illumination and is stable after being stored for 6 months under the acceleration condition.

The invention relates to a pharmaceutical composition containing rivaroxaban, in particular to a solid pharmaceutical composition containing rivaroxaban and a preparation method of the solid pharmaceutical composition. The solid pharmaceutical composition containing the rivaroxaban can be further prepared into a film-coated tablet by a specific preparation technology to serve as a specific administration mode. The solid pharmaceutical composition containing the rivaroxaban and the preparation method of the solid pharmaceutical composition have the advantages that by application of the specific preparation technology, using surfactants in a preparation is avoided and dissolution rate of the tablet is increased effectively; by means of using sodium stearyl fumarate in the composition, marked increase of degraded impurities I during long-term storage of the tablet is avoided effectively; through stability accelerating research, the film-coated tablet containing the rivaroxaban, prepared by the prescription and technological steps, is stable and controllable in quality.

The present invention provides improved, more stable formulations of amlodipine maleate where the formulations comprise from none to a minimal amount of magnesium. Such stable formulations show decreased production of the impurity amlodipine aspartate. Accordingly, the present invention provides formulations of amlodipine maleate comprising lubricants such as sodium stearyl fumarate, dimeticone, macrogol 6000, hydrogenated castor oil, and stearic acid. Methods of making and using the improved formulations are also provided.

The invention relates to a method for drying biological cellulose hydrogel. The method comprises the following steps of: soaking part of dehydrated biological cellulose hydrogel in a surfactant-containing solution, and then drying. The surfactant is one or more of glycerin fatty acid ester, sucrose fatty acid ester, soyabean lecithin, acetin, tartaric acid glyceride, diacetyl tartaric acid glyceride, citrate, polyglycerol fatty acid ester, stearoyl citrate, stearyl tartrate, sodium stearyl lactate, calcium stearyl lactate, sodium stearyl fumarate and sorbitan fatty acid ester. By the method for drying the biological cellulose hydrogel, the damage to the spatial net structure of biological cellulose in the drying process can be reduced, and the cracking in the drying, packaging and conveying processes is reduced, and the thermal insulation property of a biological cellulose dried product can be improved.

The invention discloses a clopidogrel tablet and a preparation method thereof. The clopidogrel tablet is a coated tablet which consists of a clopidogrel table body and a coating material, wherein the clopidogrel table body comprises the following ingredients in parts by weight of clopidogrel free alkali: 75 parts of pharmaceutically acceptable salt of clopidogrel, 6-9 parts of sodium stearyl fumarate, 3-6 parts of talcum powder, 90-135 parts of diluent, 2-6 parts of bonding agent and 7-17 parts of disintegrating agent, wherein the diluent is made of combined mannitol and microcrystalline cellulose in a weight ratio of (2:1)-(1:1); the weight of the coating material accounts for 2.7-3.3% of the weight of the clopidogrel tablet. By adopting the clopidogrel tablet, not only is the problem of sticking in the tabletting process solved, but also the mixed lubricant and clopidogrel have good compatibility, the phenomena that active ingredients are degraded or the configuration is inversed are avoided, and the clopidogrel tablet is high in stability, good in quality, and high in similarity in dissolving behavior to that of an original triturate plavix.

The invention relates to a propafenone hydrochloride sustained-release capsule and a preparation method thereof. The propafenone hydrochloride sustained-release capsule is prepared by filling sustained-release micro-tablets with the diameter of 2-3 mm, and has good dosage dispersion and uniformity. The micro tablets are composed of propafenone hydrochloride, a framework material, a lubricant and a diluent. The framework material is one or more of methyl cellulose, ethyl cellulose, hydroxypropyl methylcellulose and povidone; and a usage amount of the framework material is 1%-10%. The lubricant is one or more of sodium stearyl fumarate, magnesium stearate, micro-powder silica gel, talcum powder, calcium stearate and polyethylene glycol; and a usage amount of the lubricant is 0.1%-1.5%. The diluent is one or more of sucrose, mannitol, microcrystalline cellulose, lactose and polyethylene glycol; and a usage amount of the diluent is 2%-12%. According to the propafenone hydrochloride sustained-release capsule, the usage amount of a main drug is 77%-98%; and propafenone level in blood plasma reaches the maximum value 3-8 hours after drug delivery. The propafenone hydrochloride sustained-release capsule is stable in drug release and has a good sustained-release effect. An object of the invention is to provide a preparation method of the propafenone hydrochloride sustained-release capsule. The preparation method is simple in process, high in yield, good in stability and suitable for large-scale production.

An oral disintegrating tablet containing (1) D-mannitol, (2) an active ingredient, (3) one or more disintegrating agents selected from the group consisting of crospovidone and carmellose, and (4) one or more lubricants selected from the group consisting of sodium stearyl fumarate and sucrose esters of fatty acids. The oral disintegrating tablet of the present invention has some excellent properties of (1) allowing easy production in a common facility without necessitating a specialized pharmaceutical technique, (2) having an appropriate strength that does not breakdown in the process of distribution, (3) having a fast disintegrating ability in the oral cavity, and (4) also having excellent ingestion feel such as greatly reduced bitterness or gritty feel; therefore, the tablet can be suitably used as a dosage form that is suitable for aged individuals, children, and seriously ill patients.

The invention relates to a preparation method of a common pharmaceutical preparation auxiliary material sodium stearyl fumarate. An organic alkaline catalyst is utilized to lower the reaction temperature, thereby obtaining the high-quality product at high yield. By selecting the reaction conditions, the product satisfying the quality requirements can be prepared, and satisfies the requirements for pharmaceutical preparations. The method is simple to operate, has the advantages of high safety and low cost, and is suitable for industrial production.

Silicon dioxide free orally disintegrating tablet formulations of mirtazapine or a pharmaceutically acceptable salt thereof having crospovidone and sodium stearyl fumarate and one or more pharmaceutically acceptable excipients and a process for preparing such a formulation.

The invention relates to a valsartan/hydrochlorothiazide pharmaceutical composition and a preparation method thereof. The pharmaceutical composition is composed of the following components in parts by weight: 80 parts of valsartan, 12.5 parts of hydrochlorothiazide, 20-80 parts of lactose, 20-80 parts of microcrystalline cellulose, 2-10 parts of poloxamer, 4-20 parts of low substituted hydroxypropyl cellulose, a moderate amount of hydroxypropyl cellulose, 0.4-2 parts of silicon dioxide, and 0.5-5 parts of sodium stearyl fumarate. The pharmaceutical composition is prepared through the processes of carrying out micronization on the components in advance, controlling the particle sizes of raw materials, adding a moderate amount of cosolvent, granulating by using a common wet method, and tabletting. The pharmaceutical composition is simple in production process, effectively improves the dissolution rate of drugs, and has the advantages of fast disintegration, quick dissolution, good stability, and the like.

The invention belongs to the field of pharmaceutical preparations, and relates to ramelteon sublingual tablets and a preparation method thereof. The sublingual tablet contains effective amounts of ramelteon, a filler, a disintegrant, a lubricant, and a flavoring agent, and the proportion of a main drug is 0.1 to 0.5%; the filler is selected from one or a combination of mannitol, lactose, sucrose and xylitol; the disintegrant is selected from one or the combination of crospovidone, cross linked sodium carboxymethyl cellulose, and low-substituted hydroxypropyl cellulose; and the lubricant is selected from one or a combination of magnesium stearate, aerosil, and sodium stearyl fumarate; and the flavoring agent is mint flavor. The invention also provides the preparation method of the ramelteonsublingual tablets, that is, ramelteon and the filler are ground and mixed by a ball mill, and mixed with the disintegrating agent, the lubricant, and the flavoring agent, and the materials are pressed to prepare tablets. The ramelteon sublingual tablet of the invention can avoid the first pass effect of the liver and improve the bioavailability.

The invention relates to the technical field of pharmaceutical preparations, and particularly discloses a tenofovir alafenamide fumarate tablet and a preparation method thereof. The tenofovir alafenamide fumarate tablet comprises the following components in percentage by weight: 12%-14% of tenofovir alafenamide fumarate, 10%-15% of a cross-linking agent, 45%-58% of a diluent, 5%-12% of a disintegrating agent, 1%-5% of sodium stearyl fumarate and 5%-15% of calcium hydrophosphate. The tenofovir alafenamide fumarate tablet is prepared from the raw materials and auxiliary materials with a fluidized bed granulation method. The tenofovir alafenamide fumarate tablet prepared by steps of selecting the auxiliary materials and matching the optimized auxiliary material proportion with the fluidized bed granulation process is high in in-vitro dissolution rate, low in impurity content and good in stability, the safety of clinical application is improved, the tenofovir alafenamide fumarate tablet can be consistent with an original ground product in four dissolution media, besides, the preparation process is simple, and the tablet is suitable industrial production.

The invention provides a sodium stearyl fumarate auxiliary material and a preparation method thereof. The preparation method comprises the following steps: S1, mixing maleic anhydride, octadecanol anda reaction solvent, heating, and carrying out a ring-opening reaction; S2, adding a converting agent to carry out a conversion reaction; S3, cooling, dropping a sodium-containing alkali solution, stirring, and cooling to separate a crystal after the reaction is completed so as to obtain a crude product; S4, carrying out refining treatment, so as to obtain a sodium stearyl fumarate product. Sodiumstearyl fumarate is prepared by using a one-pot method, middle products do not need to be separated, preparation processes and aftertreatment steps can be greatly simplified, and reaction conditionsare gentle; moreover, the total yield is remarkably increased, the purity is remarkably improved, and the sodium stearyl fumarate auxiliary material is suitable for being used as a medicine and food auxiliary material and is applicable to industrial production.

The invention provides a premixed auxiliary material for preparing an orally disintegrating tablet through direct compression. The auxiliary material is composed of the following auxiliary materials such as mannitol, trehalose, lactose, anhydrous sodium hydrogen phosphate, crosslinked carboxymethylcellulose sodium, microcrystalline cellulose, polacrilin potassium, polyvinylpyrrolidone and sodium stearyl fumarate. The premixed auxiliary material is obtained by re-crystallizing, grinding and screening by using a method according to respective parameters. The premixed auxiliary material is particularly suitable for dosage forms such as the orally disintegrating tablet and a buccal tablet.

The invention relates to a pharmaceutical composition containing valsartan and amlodipine besylate and a preparation method. The composition takes valsartan and amlodipine besylate as raw materials, and comprises pharmaceutically acceptable excipients of microcrystalline cellulose, crosslinked sodium carboxymethyl cellulose, silica and sodium stearyl fumarate. The preparation method comprises following steps: carrying out dry granulation on the raw materials and part of the excipients firstly, and adding the sodium stearyl fumarate to carry out tabletting and coating to be produced into film-coated tablets. The preparation method is characterized in that the dry granulation is adopted to avoid the influence of moisture on main ingredients during wet granulation, and the sodium stearyl fumarate serves as a lubricant instead of commonly used magnesium stearate to prevent the influence of the magnesium stearate on the main ingredients, therefore on the premise of disintegrating and dissolving the product better, the product quality is further stabilized and the drug safety is enhanced.

The invention discloses an outer packaging film for an instant noodle bowl and relates to the technical field of plastic films. The outer packaging film is prepared from, by weight, 40-50 parts of low-density polyethylene, 15-20 parts of polypropylene, 10-15 parts of medical stone powder, 8-12 parts of hydrogenated castor oil, 6-10 parts of microcrystalline cellulose, 6-10 parts of polyvinyl alcohol, 5-8 parts of casein-soybean glue, 4-6 parts of flexibilizer, 4-6 parts of sodium polyacrylate, 3-5 parts of carnauba wax, 3-5 parts of lauric acid monoglyceride, 2-3 parts of sorbitol, 2-3 parts of stearyl citrate and 1-2 parts of sodium stearyl fumarate. The packaging film is remarkable in mechanical performance, high in using safety, capable of externally packaging the instant noodle bowl after being stretched and excellent in sealing performance and weather resistance, the phenomenon that the quality of instant noodles is affected due to the fact that water and oxygen in air penetrate through the packaging film in the storage and shelf life is prevented, printing ink can be effectively attached to the packaging film, and therefore product information such as production dates and batches can be conveniently displayed.

The invention relates to a preparation method for telmisartan tablets. The preparation method comprises the following steps: S1, weighing telmisartan, sodium hydroxide and meglumine to prepare an aqueous solution or an aqueous ethanol; S2, adding weighed povidone and sieved mannitol into a fluidized bed to make the povidone and mannitol in a fluidized state, spraying the mixed solution prepared instep S1, performing spray granulation, and performing granule finishing after drying; and S3, adding the finished granules to the weighed magnesium stearate and sodium stearyl fumarate, and performing tabletting after uniform mixing to obtain plain tablets, wherein the hardness of the plain tablets is controlled to be 7-11kgf. The preparation method optimizes the prescription technique of the telmisartan tablets, and improves the similarity of multiple dissolution curves of own products and reference preparations.

The invention relates to an azilsartan pharmaceutical composition and a preparation method of the pharmaceutical composition. The pharmaceutical composition consists of the raw materials in parts by weight: 20 parts of azilsartan, 60-150 parts of lactose, 30-120 parts of microcrystalline cellulose, 4-10 parts of low substituted hydroxypropyl cellulose, 0.3-2 parts of silicon dioxide and 0.5-5 parts of sodium stearyl fumarate. The pharmaceutical composition is prepared by adopting a direct powder tabletting process. The dissolution rate of over 90 percent can be achieved by adopting a small amount of disintegrating agent, and the pharmaceutical composition has the advantages of high stability and fast disintegration. The preparation method disclosed by the invention is simple in production process, the corresponding equipment plant investment is reduced, and the production cost is saved. The tablets produced by adopting the direct powder tabletting process are fast in disintegration, and dissolution of the medicine is improved. The detection proves that the dissolution rate of the tablets prepared by the method disclosed by the invention is over 90 percent in 30min.