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106 results about "Carvedilol" patented technology

Carvedilol is used to treat high blood pressure and heart failure. It is also used after a heart attack to improve the chance of survival if your heart is not pumping well.

Controlled release solid dispersions

A controlled release pharmaceutical composition for oral use comprising a solid dispersion of: i) at least one therapeutically, prophylactically and / or diagnostically active substance, which at least partially is in an amorphous form, ii) a pharmaceutically acceptable polymer that has plasticizing properties, and iii) optionally, a stabilizing agent, the at least one active substance having a limited water solubility, and the composition being designed to release the active substance with a substantially zero order release. The polymer is typically a polyethylene glycol and / or polyethylene oxide having a molecular weight of at least about 20,000 in crystalline and / or amorphous form or a mixture of such polymers, and the active substance is typically carvedilol. The composition may comprise a coated matrix, the coating comprising a first cellulose derivative which is substantially insoluble in the aqueous medium, and at least one of a) a second cellulose derivative which is soluble or dispersible in water, b) a plasticizer, and c) a filler.
Owner:EGALET LTD

Nanoparticulate carverdilol formulations

The present invention is directed to nanoparticulate carvedilol compositions having improved pharmacokinetic profiles, improved bioavailability, dissolution rates and efficacy. In one embodiment, the nanoparticulate carvedilol composition has an effective average particle size of less than about 2000 nm.
Owner:ALKERMES PHARMA IRELAND LTD

Time-sustained-release formulations comprising a beta-blocker

The present invention relates to compositions and methods of treating human subjects with a beta-adrenergic receptor blocking agent (“beta-blocker”) provided in a time-sustained-release delivery system. The time-sustained-release drug delivery systems includes at least three populations of beads, where each population of beads includes a beta-blocker. The beads may be selected from immediate-release beads, enteric-release beads, sustained-release beads, and time-sustained-release beads. The beta-blocker may be selected from acebutolol, atenolol, betaxolol, bisoprolol, esmolol, metoprolol, nebivolol, butoxamine, carteolol, carvedilol, labetalol, nadolol, oxprenolol, penbutolol, propranolol, pindolol, sotalol, and timolol. According to presently preferred embodiments, the beta-blocker is propranolol. The dosage forms of the present invention are useful for treating conditions including hypertension, angina pectoris due to coronary atherosclerosis, hypertrophic subaortic stenosis, congestive heart failure, arrhythmias, angina, anxiety, glaucoma, migraines, esophageal varices, alcohol withdrawal syndrome, irregular heartbeat, tachycardia, tremor, and neuroleptic-induced akathisia. They are also useful in the prophylaxis of migraine headaches.
Owner:RELIANT PHARMACEUTICALS INC

Carvedilol free base, salts, anhydrous forms or solvates thereof, corresponding pharmaceutical compositions, controlled release formulations, and treatment or delivery methods

The present invention also relates to carvedilol free base, salts, anhydrous forms, or solvates thereof, corresponding pharmaceutical compositions or controlled release formulations, and methods delivery of carvedilol forms to the lower gastrointestingal tract or methods to treat cardiovascular diseases, which may include, but are not limited to hypertension, congestive heart failure, and angina. The present invention relates to control release formulations, which comprise various cavedilol forms, which may include, but are not limited to carvedilol free base and corresponding carvedilol salts, anhydrous forms or solvates thereof.
Owner:BURKE MATTHEW D +7

Carvedilol free base, salts, anhydrous forms or solvates thereof, corresponding pharmaceutical compositions, controlled release formulations, and treatment or delivery methods

The present invention also relates to carvedilol free base, carvedilol salts, anhydrous forms, or solvates thereof, corresponding pharmaceutical compositions or controlled release formulations, and delivery or dosing methods of carvedilol forms to the lower gastrointestingal tract or methods to treat cardiovascular diseases, which may include, but are not limited to hypertension, congestive heart failure, atherosclerosis, and angina. The present invention relates to controlled release formulations, which comprise various carvedilol forms, which may include, but are not limited to a carvedilol free base or corresponding carvedilol salts, anhydrous forms or solvates thereof.
Owner:FLAMEL TECHNOLOGIES +1

Anti-cancer activity of carvedilol and its isomers

InactiveUS6632832B1Inhibits COX activityPrevent and inhibit tumor growthBiocideArtificial cell constructsMelanomaProstate cancer
The present invention provides for pharmaceutical compositions comprising carvedilol for treatment of cancer. More particularly the invention relates to the use of carvedilol for treatment of cancers of the colon, ovary, breast, prostate, pancreas, lung, melanoma, glioblastoma, oral cancer and leukemias. Although not bound to any theory, the anticancer activity of carvedilol appears to be attributed to the inhibition of Epidermal Growth Factor and Platelet derived growth factor dependent proliferation of cancer cells. Further, carvedilol exerts anticancer effect by inhibition of the Protein kinase C (PKC) activity and that of the cyclooxygenase 2 enzyme. The invention also relates to the anticancer activity of the optically pure isomers S(-) and R(+) of carvedilol and the use of carvedilol and its isomers in pharmaceutical compositions for the treatment of cancer.< / PTEXT>
Owner:DABUR RESEARCH FOUNDATION

Controlled release carvedilol compositions

A controlled release pharmaceutical composition for oral use comprising carvedilol. The composition releases carvedilol after oral administration to a mammal, including a human, in such a manner that a prolonged residence of carvedilol is obtained in the circulatory system compared with the known compositions of carvedilol. Furthermore, a composition according to the present invention makes available to the body a suitable plasma concentration of one or both of the enantiomeric species, namely R(+) and / or S(−) carvedilol for obtaining the desired therapeutic effect.
Owner:EGALET LTD

Process for preparation of carvedilol

The invention solves a new method of preparation of Carvedilol for pharmaceutical use. In the synthesis of Carvedilol a reaction of 4-(oxirane-2-ylmethoxy)-9H-arbazole (II) with 2-(2-methoxyphenoxy)ethylamine salts (IV) in the presence of a base, in an alcohol having the number of carbons C2 to C5 as a solvent, at an elevated temperature, is used. After processing of the crude reaction mixture crude Carvedilol is obtained, which is purified by crystallization from ethylacetate with an addition of activated carbon and the final substance is formulated by crystallization from ethylacetate.
Owner:SANECA PHARMA

Method of treatment

InactiveUS20050009897A1Maintaining glycemic controlBiocideOrganic chemistryGlycemicCarvedilol
This invention relates to a method of maintaining glycemic control in diabetic hypertensive patients which comprises administering carvedilol to a subject in need thereof.
Owner:SMITHKLINE BECKMAN CORP

Compounds and methods for carbazole synthesis

Compounds having bi-cyclic structure comprising a partially unsaturated 6-carbon first cyclic moiety interconnected to a 6-carbon second cyclic moiety second via a divalent linking moiety are provided. The compounds can be used as intermediates compounds in methods for the synthesis of carbazoles and derviatives thereof, including carvedilol, and tricyclic alkylhydroxamates, which do not require Fischer indole synthetic steps. Methods of preparing the compounds having bi-cyclic structures are also provided.
Owner:ROCHE COLORADO CORP

Process for the preparation of carvedilol and its salts

Disclosed herein is a process for preparation of carvedilol substantially free from its bis-impurity comprises the reaction of 4-(2,3-epoxypropoxy)carbazole and 2-(2-methoxyphenoxy)ethylamine in a polar aprotic solvent media; followed by isolation of carvediol from the reaction mass as an acid addition salt and subsequent conversion into pure carvedilol.
Owner:IPCA LAB LTD

Carvedilol monocitrate monohydrate

This invention relates to carvedilol monocitrate monohydrate, compositions containing this salt of carvedilol and methods of using this compound to treat hypertension, congestive heart failure and angina.
Owner:PHARMCO PUERTO RICO INC

Simple preparation of expanded mesoporous silicon dioxide and dissolution promoting application of expanded mesoporous silicon dioxide

The invention discloses a simple synthetic method of expanded mesoporous silicon dioxide with a large specific surface area and a dissolution promoting application of expanded mesoporous silicon dioxide on an insoluble drug carvedilol. The method comprises the following steps: firstly dissolving a template in deionized water, dissolving a pore-enlarging agent in ethanol, then mixing the two solutions, adding sodium hydroxide and a silicon source into the mixed solution at 80 DEG C and filtering the reaction liquid and washing the filter cake after reaction for two hours; and finally, putting the filter cake in a hydrochloric acid / ethanol solution for refluxing for 3 hours to obtain an expanded silicon dioxide product with the large specific surface area. The preparation method is easy to operate, simple in process, mild in reaction and low in cost. The prepared expanded mesoporous silicon dioxide is in a mono-dispersive spherical shape, the specific surface area reaches up to 1234.4m<2> / g and the pore diameter is 3.7nm. Finally, the mesoporous silicon dioxide and carvedilol are used for preparing a solid dispersion, and dissolution of the medicinal raw material carvedilol is obviously improved, so that the dissolution rate of carvedilol within 15 minutes reaches near 80%.
Owner:CHINA PHARM UNIV

Extended release formulations of carvedilol

InactiveUS20080138404A1Dissolve fastEnhancing rate and extent of releaseBiocidePill deliveryHydrophilic polymersCarvedilol
An improved controlled release dosage form for once-daily administration of carvedilol is described. The controlled release dosage form comprises a therapeutically effective amount of carvedilol and / or a pharmaceutically acceptable salt thereof; one or more hydrophilic polymers; one or more pharmaceutically acceptable excipients; and a polyoxyalkylene block copolymer, a solid dispersion of carvedilol and an extrusion material or a combination of a polyoxyalkylene block copolymer, a solid dispersion of carvedilol and an extrusion material.
Owner:BIOVAIL LAB INT SRL

Use of medicine combination comprising carvedilol and angiotensin II recipient antagon in preparing medicine for treating kidney disease

ActiveCN101417132ASynergistic treatment effect is goodImpact on long-term survivalPowder deliveryMetabolism disorderNephrosisActive component
The invention provides the usages of a drug composition comprising the active components of carvedilol and an angiotensin II receptor antagonist for preparing a drug which can cure nephropathy. The cooperation effect of the carvedilol and the angiotensin II receptor antagonist are used for developing a method which is more effective in curing the nephropathy. The drug composition has remarkable effects when being used for curing nephropathy, diabetic nephropathy, hypertensive nephropathy, and the like.
Owner:LUNAN PHARMA GROUP CORPORATION

Method of treating airway diseases with beta-adrenergic inverse agonists

The use of β-adrenergic inverse agonists provides a new and highly efficient way of treating a number of pulmonary airway diseases, including asthma, emphysema, and chronic obstructive pulmonary diseases. In general, such a method comprises administering a therapeutically effective amount of a β-adrenergic inverse agonist to the subject to treat the pulmonary airway disease. Particularly preferred inverse agonists include nadolol and carvedilol. In addition, methods are described for long-term administration of such inverse agonists and for determining the suitability of patients for long-term inverse agonist therapy.
Owner:INVERSEON INC

Method for preparing carvedilol solid dispersions by virtue of supercritical anti-solvent technique

ActiveCN106309434AImproved dissolution propertiesCarvedilol solid dispersion with significantly improved dissolution propertiesPowder deliveryOrganic active ingredientsSupercritical anti solventOrganic solvent
The invention discloses a method for preparing carvedilol solid dispersions by virtue of a supercritical anti-solvent technique. The method comprises the following steps: (S1) dissolving carvedilol and a water-soluble carrier into an organic solvent, so as to obtain a carvedilol-carrier mixed solution; (S2) introducing CO2 into a crystallization kettle, and regulating the temperature and pressure in the crystallization kettle; (S3) continuing to introduce CO2 to keep the temperature and pressure in the crystallization kettle constant, and simultaneously introducing the mixed solution prepared in the step (S1) into the crystallization kettle; and (S4) after the carvedilol-carrier mixed solution is introduced, continuing to introduce CO2 to keep the temperature and pressure in the crystallization kettle constant, finally relieving the pressure, and after the pressure in the crystallization kettle is decreased to the atmospheric pressure, opening the crystallization kettle, and collecting the carvedilol solid dispersions. By virtue of the method, the carvedilol solid dispersions with obviously improved dissolution characteristics can be prepared, and furthermore, the bioavailability of indissolvable drugs can be improved.
Owner:CHINA PHARM UNIV

Extended release matrix tablets

The present invention relates to extended release matrix tablets for oral administration that include a cationic polymer, a water-swellable polymer, and an alginic acid derivative to cause the release rate of the active ingredient of the tablets to be independent of pH and gastric residence time. The active pharmaceutical ingredient may be one or more of antibiotics, sympathomimetics, sympatholytic agents, cholinergic agents, antimuscarinics, gastro-intestinal drugs, gentio-urinary smooth muscle relaxants, cardiac drugs, anticonvulsants, tranquilizers and sedatives, and in particular may be an antibiotic, such as cefaclor, or may be a sympatholytic agent, such as carvedilol.
Owner:RANBAXY LAB LTD

Carvedilol push-pull osmotic pump type controlled release preparation and preparation method thereof

The invention relates to a carvedilol push-pull osmotic pump type controlled release preparation. The carvedilol push-pull osmotic pump type controlled release preparation comprises a medicine-containing layer tablet core, a boosting layer tablet core, a coating film and a single medicine releasing pore on the surface of a controlled release tablet on one side of the medicine-containing layer tablet core. According to the carvedilol push-pull osmotic pump type controlled release tablet disclosed by the invention, the medicine release accords with the zero-order release process and is basically complete, the administration frequencies of patients can be reduced and the peak-to-valley phenomenon which occurs after a general preparation is administrated is avoided; and plasma drug stability and durable curative effect in the release process of medicaments are obtained, and thus the safety and the effectiveness are improved.
Owner:CHINA PHARM UNIV

Carvedilol sulphate crystals, preparation method and application thereof in medicine

The invention relates to carvedilol sulphate crystals, a preparation method and application thereof in medicine, in particular to medicaments carvedilol sulphate type A, B, C and D crystals for treating hypertension, congestive heart failure and angina pectoris, a preparation method and application thereof. The preparation method comprises the following step: crystallizing a carvedilol sulphate solid in any crystal form or an amorphous carvedilol sulphate solid with conventional polar organic solvents and aqueous solutions thereof to obtain the type A, B, C or D crystal. The carvedilol sulphate crystals disclosed by the invention have favorable crystal form, and the used crystallizing solvents have the advantages of low toxicity and low residue. The carvedilol sulphate crystals prepared by the method can be better used for clinical treatment.
Owner:JIANGSU HENGRUI MEDICINE CO LTD

Carvedilol supersaturatable self-microemulsion dispersible tablets and preparing method thereof

The invention relates to the technical field of pharmaceutic preparations, in particular to carvedilol supersaturatable self-microemulsion dispersible tablets and a preparing method thereof. A carvedilol supersaturatable self-microemulsion preparation is prepared by combining an oil phase, a surfactant, a cosurfactant and a supersaturation promoter according to a certain ratio and mixed with other auxiliary materials after being adsorbed by an excipient, and then tabletting is conducted on powder directly to obtain the carvedilol supersaturatable self-microemulsion dispersible tablets. The prepared carvedilol supersaturatable self-microemulsion dispersible tablets can form microemulsion with particle size within 200 nm through spontaneous emulsification in the body after being orally taken. By the adoption of the supersaturatable self-microemulsion dispersible tablets, the dissolution rate of carvedilol in the gastrointestinal tract can be increased, bioavailability can be improved, usage of the surfactant and the cosurfactant in the prescription can be reduced, irritation to the gastrointestinal tract can be reduced, drug use safety can be improved, and market prospects are broad.
Owner:CHINA PHARM UNIV

Solid dispersoid of poorly soluble drug CVD (carvedilol), preparation method and application

The invention discloses a solid dispersoid of poorly soluble drug CVD (carvedilol), a preparation method and an application and relates to the technical field of medicines. With the adoption of a one-step solvent coprecipitation method, CVD and a protonation reagent are dissolved in a solvent, a dispersion material is added, a suspension is obtained for coprecipitation, and finally, the solid dispersoid is prepared after the solvent is removed. The one-step solvent coprecipitation method is adopted for in-situ production of the solid dispersoid. Detection proves that CVD is transformed into an amorphous form from an original crystal form and is dispersed in the solid dispersoid, besides, CVD is salified due to addition of the protonation reagent, thus, the solubility and the dissolution rate of free alkali drugs are improved from two aspects, and the bioavailability of the BCSII type poorly soluble drug CVD is effectively improved. a drug preparation with retention floating in the stomach and time-lag trip or release in different pH parts in a body is prepared from the CVD solid dispersoid according to a polymer coating material in cooperation with the dissolubility characteristic of pH dependency.
Owner:HEFEI COSOURCE PHARMA CO LTD
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