163 results about "Flurbiprofen" patented technology

The present invention relates to the use of tarenflurbil and/or a pharmaceutically tolerable salt or derivative thereof in enantiomerically-pure and/or essentially enantiomerically-pure form or a form that is enriched with respect to flurbiprofen racemate and/or a racemate of said salt or derivative, for the production of a drug for the treatment of pain-associated neuropathy, pain-associated neuropathy that is simultaneously accompanied by states of nociceptive pain, peripheral and/or predominantly peripheral neuropathic pain or central and/or predominantly central neuropathic pain.

The invention provides a flurbiprofen hydrogel plaster and a composition thereof. In the composition, the content of flurbiprofen is 0.1-3wt%, and a hydrogel substrate accounts for the rest. Based on the total weight of the hydrogel substrate, the hydrogel substrate comprises the following components: 0.1-40wt% of a hydrophilic base material, 0.01-2wt% of a crosslinking agent, 0.01-4wt% of a crosslinking regulator, 10-60wt% of a humectant, 0.05-45wt% of a penetration enhancer and 10-85wt% of a solvent. According to the flurbiprofen hydrogel plaster provided by the invention, a small number of medicines are used, and the permeability and stability are good; and the flurbiprofen hydrogel plaster can be applied to various arthralgia diseases such as rheumatic arthritis, gouty arthritis, ankylosing spondylitis, tenosynovitis, muscle pain and lumbago.

The present invention relates to the field of medicine technology, in particular, it relates to a flurbiprofenbab preparation and its preparation method. Said preparation includes back lining layer, medicine storage layer and protecting film, said medicine storage layer is formed from flurbiprofen powder preparation or flurbiprofen emulsion, hydrophilic bab preparation matrix, osmotic acceleratorand additive. Its medicine-carrying quantity is large, moisture-holidng property and air permeability are good.

The invention relates to the field of pharmaceutical chemical synthesis, in particular to a preparation method of flurbiprofen and a preparation method of flurbiprofen axetil. The preparation method of the flurbiprofen comprises the steps of carrying out a Grignard reaction by using 4-bromine-2-fluorine biphenyl as a raw material, carrying out a coupling reaction, and acidizing to obtain the flurbiprofen; the yield is 90%, and the purity is 99.5%; then, the flurbiprofen axetil is prepared by using the flurbiprofen, obtained by the method, as a raw material, the yield reaches up to 90%, and thepurity reaches up to 99.5%. The preparation methods are high in quality controllability and industrial reproducibility.

The invention relates to a flurbiprofen acetaminophen resin lipid microsphere injection, a freeze-drying lipid microsphere injection and a preparation method. Through a reasonable composition proportion and a preparation process with controllable parameters, good stability and strong operability, the flurbiprofen acetaminophen resin which is an indissolvable drug is wrapped in an oil phase and an interfacial film of a lipid microsphere, so that not only is the solubility of the drug remarkably strengthened, but also precipitation and oxidation do not occur easily, the physical and chemical stabilities of the drug are greatly improved, the devitrification phenomenon is avoided in the use and storage processes, a slow release effect is exerted and the action time of the drug in the blood plasma is prolonged, meanwhile, as the lipid microsphere targets to an inflammation part, the toxicity and the vessel stimulation during injection are remarkably reduced, the clinical application of the injections is safer, the treatment effect is more remarkable, and the injections and the methods are suitable for industrialized production and clinical application.

The invention discloses a flurbiprofen coating agent, comprising, by weight, 8-15 g of flurbiprofen, 5-20 g of chitosan, 8-15 g of carbomer, 83-125 g of glycerol, 8-15 g of laurocapram, 200-600 g of ethyl alcohol, and 500-900 g of purified water. A preparation method includes: 1, spreading 10 g of chitosan and 10 g of carbomer to the surface of 300 g of purified water so that the chitosan and the carbomer naturally swell, and performing heating so that the chitosan and the carbomer dissolve into glutinous slurry; 2, mixing 100 g of glycerol and 600 g of ethyl alcohol, adding 5 g of flurbiprofen, and performing uniform mixing to obtain mixed liquid; 3, adding the glutinous slurry of step 1 into the mixed liquid of step 2, and performing uniform mixing; 4, adding 10 g of laurocapram, adding 650 g of purified water, and performing full mixing to obtain the flurbiprofen coating agent. The flurbiprofen coating agent is convenient to administer and has exact curative effect; the preparation process is simple and reasonable and meets the requirement on coating agent quality.

The invention provides a novel 2-(2-fluorine-4biphenyl)-propionic acid pharmaceutical composition. Flurbiprofen and basic amino acid arginine or lysine form a pharmaceutical composition solution. The composition can be administrated in an injection or oral administration manner and can also be further administrated in a freeze-drying manner. Compared with a flurbiprofen axetil injection, a flurbiprofen composition not only does not influence the antipyretic, anti-inflammation and analgestic effects of the flurbiprofen, but also has the advantages of simple technology, low cost, high quality, stable long shelf life and convenience in quality control, storage and transportation; moreover, compared with a conventional oral preparation, the flurbiprofen composition has the same low gastrointestinal tract adverse reaction as the flurbiprofen axetil injection.

The invention discloses preparation methods of a flurbiprofen axetil compound. The methods comprise the steps: firstly dropwise adding an ester compound into a mixture of flurbiprofen, an acid catalyst and an organic solvent to form a reaction system, or directly mixing flurbiprofen, an alcohol and the acid catalyst, after a reaction is finished, thus obtaining a reaction system, then carrying out spin steaming concentration treatment under reduced pressure, adding ethyl acetate and water to fully dissolve, standing and layering to obtain an organic phase, washing the organic phase, drying, purifying by passing through a silica gel column, and thus obtaining the flurbiprofen axetil compound. The preparation methods have the advantages of simple reaction operation, low requirements on production personnel and production equipment, small pollution degree and low production cost, are safe and effective, can avoid use of high-risk and high-toxic materials, and can be used for mass production.

The invention provides flurbiprofen cataplasm. The cataplasm is composed of a backing layer, a drug reservoir and a protective layer. The cataplasm is characterized in that the drug reservoir is prepared from the following components in percentage by weight: 0.2%-0.5% of flurbiprofen as an active component, 5%-10% of an oil phase component, 5%-10% of partially neutralized sodium polyacrylate as an aqueous phase component, 15%-20% of glycerol, 0.2%-0.4% of aluminum glycinate, 0.1%-0.3% of sodium calcium edetate, 1%-1.5% of carbomer 934, 1.5%-3% of sodium carboxymethyl cellulose (CMC-Na), 0.05%- 0.1% of a pH adjusting agent and gellan gum, 1%-1.5% of L-glycine, 1%-3% of a filler and the balance of water, wherein the oil phase component is prepared from castor oil and benzyl alcohol, the ratio of castor oil to benzyl alcohol is 1 to (0.08 to 0.12), the aqueous phase component and water form hydrogel, the filler is arranged in the hydrogel dispersedly, and the oil phase component is emulsified and disperses in the hydrogel to form the drug reservoir.

The invention discloses a method for fixing layered double hydroxide on the surface of polypropylene and application of the method. Firstly, a dopamine alkaline solution is prepared in a polypropylene centrifugal pipe, vortex preoxidation is carried out at normal temperature, a reaction is conducted for 6-8 hours at the water bath condition of 30-50 DEG C, and a poly-dopamine thin layer is formed; then, divalent metal ions, trivalent metal ions and a CO(NH2)2 solution are added into the centrifugal pipe modified by dopamine, layered double hydroxide is prepared and fixed after a heating reaction, and the inner surface of a device is provided with a layer-by-layer assembled structure of polydopamine and the layered double hydroxide. The preparation method is simple, no pollutant reagent needs to be added, and the formed layered double hydroxide structure is stable and compact. The device has a good effect on removing flurbiprofen, other acidic medicine active compounds, rhodamine B and other anionic dye in aqueous solutions. The device is small in size and convenient to carry, and can achieve the functions of adsorbing and removing anionic compounds in solutions through simple centrifugation.

The invention relates to flurbiprofen acetaminophen ester solid dispersion and a preparation method thereof. Anti-inflammatory and analgesic prodrugs mainly comprise brand new compounds of flurbiprofen acetaminophen ester, and the flurbiprofen acetaminophen ester solid dispersion is prepared by adding hydrophilic carrier materials and by respectively adopting a solvent method, a solvent-melting method and a melting method and can be further prepared into oral tablets or capsules by being mixed with proper adjuvants. By the flurbiprofen acetaminophen ester solid dispersion and the preparation method thereof, solubility and dissolving-out speed of drugs can be obviously increased, the solubility of the drugs in water is increased by 10-100 times as compared with that of crude drugs, cumulative dissolving-out percentage of the drugs in dissolving-out media in 45 minutes is substantially increased accordingly, and finally oral absorbability of the drugs is improved.

The present invention provides a method for producing optically active flurbiprofen. The method of the present invention includes mixing racemic flurbiprofen and (S)- or (R)-3-methyl-2-phenylbutylamine in an organic solvent to produce a diastereomeric salt; and treating the diastereomeric salt with an acid in a second solvent. In the method of the present invention, flurbiprofen having a desired absolute configuration can be obtained very efficiently without repeating the procedure for optical resolution a plurality of times.

The invention discloses a novel flurbiprofen chalcone compound (I), pharmaceutically acceptable salt thereof, a preparation method thereof, a pharmaceutical composition and application to preparationof drugs for treating and/or preventing diseases related to neurodegeneration, including but not limited to neurodegeneration diseases of vascular dementia, an Alzheimer's disease, a Parkinson's disease, a Huntington's disease, HIV-related dementia, MS (multiple sclerosis), progressive lateral sclerosis spinal cord, neuropathic pain, glaucoma and the like.

This invention is a novel controlled release (CR) flurbiprofen and muscle relaxant combinations for oral administration with anti-inflammatory, analgesic, myorelaxant activity and methods of its manufacture. The pharmaceutical composition of the present invention is administered orally in tablet, multilayer tablet, multicoated tablet and capsule form.

The invention provides a lipid microsphere preparation comprising propofol, flurbiprofen ester, oil phase solvent and emulgator. The invention also provides a method for preparing the lipid microsphere preparation. The method comprises the following steps: (1) mixing an oil phase mixture containing the propofol, the flurbiprofen ester, the oil phase solvent and the emulgator to generate uniform oil phase; (2) adding the oil phase to water phase to form colostrum; (3) homogenizing the colostrums. The lipid microsphere preparation is used as a dope and has improved abirritation simultaneously.

An ingestible particulate composition comprises: a) at least one compound selected from the group consisting of 2,4-dichlorobenzyl alcohol, amylmetacresol, cetylpyridinium chloride, hexitidine, hexylresorcinol, flurbiprofen, lidocaine, benzocaine, ibuprofen, paracetamol, pectin, menthol, and benzydamine; and b) one or more bioadhesive materials. Resulting particulate compositions have excellent flow characteristics, dust suppression, organoleptic properties and stability. They are highly suitable for administration direction into a patient's mouth, and ingested to alleviate the symptoms of a sore throat.

The invention discloses a method for preparing S-(+)-flurbiprofen axetil high in optical purity.The method comprises the steps of 1, making S-(+)-flurbiprofen axetil react with 1-substituted ethyl acetate in the presence of alkali and organic solvent for 3-15 h at the temperature of 0-25 DEG C; 2, extracting and washing a reaction product, and separating out grease; 3, conducting column chromatographic purification on the grease; 4, removing organic solution residues with the solvent coevaporation method, and then conducting vacuum drying to obtain the target product.Inorganic base is not used, organic base highly intersoluble with organic solvent is adopted, a proper solvent ratio is selected to guarantee the proceeding of reaction, and racemization and product breakdown which occur often are avoided during preparation.The total yield of the prepared S-(+)-flurbiprofen axetil can be 80% or more, and optical purity is higher than 99%.

In a plaster for external use for transdermal absorption in which an adhesive layer is laminated on a plastic backing, the adhesive layer contains a styrene-isoprene-styrene block copolymer (SIS), a tackifying resin and a softener which are essential ingredients, and further contains flurbiprofen blended as an active ingredient. The present plaster for external use is a flurbiprofen containing plaster for external use enabling long-term stable release of contained flurbiprofen, and having excellent stability and very high drug releasing property.