104 results about "Carbidopa" patented technology

The invention relates to the improvement in the treatment of certain neural disorders / diseases, such as Parkinson's disease and other motor disorders. The invention relates to drug compositions and dosage forms comprising said drug composition; methods of manufacturing the drug compositions and dosage forms; and methods of treatment, comprising administering the drug composition and dosage form to an individual. In certain embodiments, the drug compositions and dosage forms comprise carbidopa and levodopa in a formulation suitable for once-daily administration.

The invention is a composition administrable orally to provide systemic glutathione (reduced) and a method for providing systemic glutathione by oral administration of glutathione (reduced) in a liposome encapsulation. The administration of a therapeutically effective amount of oral liposomal glutathione (reduced) results in improvement of symptoms in disease states related to glutathione deficiency such as Parkinson's disease and cystic fibrosis. Compounds enhancing the effect of the liposomal glutathione are contemplated such as Selenium, EDTA, carbidopa, and levodopa.

Disclosed are substances, compositions, dosage forms and methods that comprise levodopa and / or carbidopa.

The present invention relates to stable compositions of levodopa and carbidopa, methods of treating patients with these compositions, and methods of preparing these compositions.

There is provided an extended release pharmaceutical composition comprising from about 200 mg to about 1000 mg of entacapone or salts thereof, optionally with other pharmaceutically acceptable excipients. The invention also provides an extended release pharmaceutical composition comprising triple combination of from about 30 mg to about 300 mg of levodopa, 10 mg to about 100 mg of carbidopa and 200 mg to about 1000 mg of entacapone or salts thereof, optionally with other pharmaceutically acceptable excipients. The invention also relates to process of preparation of such compositions.

The invention provides a compressed tablet that provides a extended release tablet containing a extended release form of carbidopa and a extended release form of levodopa. The tablet optionally further comprises an immediate or rapid release composition of carbidopa and / or levodopa. The extended release composition in the tablet excludes a release rate-controlling polymer, and a release rate-controlling coating; however, the release of the carbidopa and / or levodopa is independently optionally delayed for a lag time. The invention also provides a tablet having a extended release form of levodopa and a rapid or immediate release form of carbidopa. A tablet can contain levodopa present in extended release form and rapid or immediate release form, and carbidopa present in extended release form and rapid or immediate release form. The tablet is used to treat Parkinson's disease and other movement related disorders, diseases or syndromes.

The invention is directed to pharmaceutical dosage forms having immediate release via rapid oral disintegration, specifically, orally disintegrating tablets containing levodopa and carbidopa. The invention further provides formulations containing relatively increased amounts of carbidopa than previously available, including, for example, formulations containing carbidopa-levodopa ratios of about 1:1 to about 1:3.

A method of treating Parkinson's Disease comprising intestinally administering to a patient in need thereof a pharmaceutically effective amount of a composition comprising levodopa and optionally carbidopa continuously over a period of greater than 16 hours.

The present invention relates to stable compositions of levodopa and carbidopa, methods of treating patients with these compositions, and methods of preparing these compositions.

The present invention relates to dosage forms of a combination of carbidopa and levodopa comprising both immediate release and controlled release components for the treatment of ailments associated with depleted amounts of dopamine in a patient's brain tissue.

Provided herein, in part, is a method of treating a neurological or movement disorder in a patient in need thereof, comprising subcutaneously administering to said patient a pharmaceutically acceptable composition comprising levodopa and optionally carbidopa and optionally entacapone or tolcapone, or pharmaceutically acceptable salts thereof, wherein said composition is administered substantially continuously, and compositions that can be used in the disclosed methods.

The invention relates to a pharmaceutical composition comprising a therapeutically effective amount of levodopa and of carbidopa, dispersed in a hydrophilic matrix, said composition further comprising an organic acid. A subject of the invention is also a process for preparing the composition, comprising granulation, in particular in a fluidized bed, of the various components and compression of the granules obtained.

The invention relates to an oral solid pharmaceutical composition comprising pharmacologically effective amounts of entacapone, levodopa and carbidopa, or a pharmaceutically acceptable salt or hydrate thereof, and one or more pharmaceutically acceptable excipients, wherein the excipients are long-chain polymers having an equilibrium moisture content of at least 2%, and to a preparation method thereof. The compositions can be used for the treatment of Parkinson's disease.

Guanosine triphosphate pathway tetrahydrobiopterin synthesis antagonist and / or pterin salvage pathway tetrahydrobiopterin synthesis antagonists are administered to inhibit nitric oxide synthesis from arginine in vascular cells in a subject in need of such inhibition (e.g., for prophylactic or curative effect for endotoxin- or cytokine-induced hypotension or for restoration of vascular contractile sensitivity to pressor agents in the treatment of such hypotension). The tetrahydrobiopterin synthesis antagonist may be administered with alpha 1-adrenergic agonist or with nitric oxide synthase inhibitor. The tetrahydrobiopterin synthesis antagonists are also administered to attenuate inflammation caused by induced nitric oxide production in immune cells. Unwanted counterproductive or side effects can be eliminated or ameliorated by administration additionally of levodopa with or without carbidopa and L-5-hydroxytryptophane.

A gastroretentive drug formulation for the sustained release of an active agent in the gastrointestinal tract comprises an internal layer or compartment comprising an active agent and one or more pharmaceutical excipients, of which at least one is a polymer and two membranes forming together an envelope around the inner membrane, each membrane comprising at least one polymeric combination of an enteric polymer which is not soluble in gastric juice, and an hydrophilic swelling polymer, and at least one plasticizer.

The present invention relates to controlled release pharmaceutical compositions of carbidopa and levodopa that include a combination of different molecular weight cellulose ethers and in particular, hydroxypropyl cellulose ether.

The present invention relates to an extended-release pharmaceutical dosage form of carbidopa and levodopa comprising (i) an immediate-release unit of carbidopa and levodopa; (ii) an extended-release unit of carbidopa and levodopa; and (iii) an immediate or extended-release unit of a carboxylate salt. The present invention further provides a process of preparation thereof.

The present invention provides a method for treatment of a neurological or movement disorder, e.g., Parkinson's disease, in an individual in need thereof, by parenteral administration of a composition comprising carbidopa and levopoda, or pharmaceutically acceptable salts thereof, and concomitant oral administration of a catechol-O-methyl transferase (COMT) inhibitor, e.g., entacapone or tolcapone.

The present invention refers to a solid pharmaceutical composition of entacapone, levodopa and carbidopa or pharmaceutically acceptable salts thereof characterized in that entacapone is in the form of granules and it is added separately to levodopa and carbidopa. In addition, this invention provides the process for its preparation.

The present disclosure relates to (a) carbidopa prodrugs, (b) pharmaceutical combinations and compositions comprising a carbidopa prodrug and / or an L-dopa prodrug, and (c) methods of treating Parkinson's disease and associated conditions comprising administering a carbidopa prodrug and an L-dopa prodrug to a subject with Parkinson's disease.

Provided herein, in part, is a method of treating a neurological or movement disorder in a patient in need thereof, comprising subcutaneously administering to said patient a pharmaceutically acceptable composition comprising levodopa and optionally carbidopa and optionally entacapone or tolcapone, or pharmaceutically acceptable salts thereof, wherein said composition is administered substantially continuously, and compositions that can be used in the disclosed methods.

Provided herein, in part, is a method of treating a neurological or movement disorder in a patient in need thereof, comprising subcutaneously administering to said patient a pharmaceutically acceptable composition comprising levodopa and optionally carbidopa and optionally entacapone or tolcapone, or pharmaceutically acceptable salts thereof, wherein said composition is administered substantially continuously, and compositions that can be used in the disclosed methods.

The invention discloses a levodopa / carbidopa compound sustained-release suspension and a preparation method thereof. The preparation comprises the following components in percentage by weight: 10-50% of levodopa, 10-50% of carbidopa and 10-50% of accessory realizing a sustained-release effect. Compared with a solid preparation, the suspension disclosed by the invention has the advantages that the drug is coated in resin so that the drug stability is improved; the suspension can be taken in divided dose, so that the problem that the oral solid sustained-release preparation prepared from large-dose drugs is hard to swallow is solved; in a multi-unit drug release system, the drug release action is the total of the drug release actions of particles, and the reproducibility and consistency are better; the phenomenon of excessively high local concentration often caused after the oral solid sustained-release preparation is ground can be avoided; the bad smell of the drug can be covered, and the palatability of the preparation is improved. The sustained-release preparation disclosed by the invention is to be clinically used as an anti-paralysis agitans drug.

The invention relates to an oral solid fixed dose composition comprising pharmacologically effective amounts of entacapone, levodopa, and carbidopa, or a pharmaceutically acceptable salt or hydrate thereof, and comprising at least one pharmaceutically acceptable excipient. The composition of the invention can be used e.g. for the treatment of Parkinson's disease.

The present invention relates to stable dosage forms and compositions of levodopa and carbidopa for the treatment of patients suffering from Parkinson's disease. The dosage forms and compositions comprise both solid and liquid formulations and result in stable pharmaceutical products. Such dosage forms and compositions comprise a metal chelator and a levodopa concentration from about 1 mg / mL to about 30 mg / mL.

Disclosed herein are compositions that include for example the arginine salt of carbidopa, and methods for treating neurological or movement diseases or disorders such as restless leg syndrome, Parkinson's disease, secondary parkinsonism, Huntington's disease, Parkinson's like syndrome, PSP, MSA, ALS, Shy-Drager syndrome and conditions resulting from brain injury including carbon monoxide or manganese intoxication, using substantially continuous administration of carbidopa or salt thereof together with administration of levodopa.

The invention relates to a medicine composition of myricetrin or / and myricetin aglycone thereof and levodopa or of levodopa and carbidopa and an application of myricetrin or / and myricetin aglycone thereof as a synergist in preparation of a medicine used for treating Parkinson. In vitro activity determination finds that IC50 of myricetrin and myricetin inhibiting catechol-O-methyltransferase (COMT) can be a micromole-nanomole scale. Rat overall pharmacokinetic study finds that blood concentration of levodopa can be increased after myricetrin and myricetin aglycone thereof and levodopa are used jointly; and myricetrin and myricetin aglycone thereof are high in safety, no obvious toxicity is produced to main visceral organ cells of a human body, and no active intermediate is produced by virtue of metabolism activation and further no damage done to organs such as liver and kidney is initiated, so that the myricetrin and myricetin aglycone thereof have a good application prospect in adjuvant therapy of Parkinson.