119 results about "Memantine" patented technology

The present invention provides pharmaceutical compositions given once daily containing at least one therapeutically active ingredient selected from the group consisting of memantine and a pharmaceutically acceptable salt of memantine, and a pharmaceutically acceptable polymeric matrix carrier. The dosage forms of the invention sustain the release of the therapeutically active agent from about 4 to about 24 hours when said dosage form is exposed to aqueous solutions. following entry of said form into a use environment, wherein said dosage form has a dissolution rate of more than about 80% after passage of about 6 hours to about 12 hours following said entry into said use environment.

The invention provides methods and compositions for administering an NMDA receptor antagonist (e.g., memantine) to a subject.

The present invention provides immediate release and modified release oral dosage forms. Specifically, the invention provides modified and immediate release pharmaceutical dosage forms containing memantine that exhibit an enhanced release profile and provide reliable absorption. The dosage forms may be used to treat mild, moderate or severe Alzheimer's disease or neuropathic pain.

The invention provides compositions and methods for treating autoimmune diseases such as multiple sclerosis. The compositions include a combination of an NMDA Receptor antagonist, such as memantine or rimantadine, and a fumarate agent, such as dimethyl fumarate.

The invention provides sustained release formulations of basic drugs, stereoisomers of basic drugs, pharmaceutically acceptable salts of basic drugs, and pharmaceutically acceptable salts of stereoisomers of basic drugs. The basic drugs may be anti-dementia drugs, such as cholinesterase inhibitors or memantine. In one embodiment, the cholinesterase inhibitor is donepezil.

Disclosed are conjugates in which an aminoadamantane derivative, such as amantadine, memantine, or rimantadine is linked to a therapeutic agent. The conjugate can then be used to target the therapeutic agent to an injured neuron.

The present invention provides an osmotic device containing controlled release venlafaxine in the core in combination with an anti-Alzheimer's or an anti-Parkinson's drug in a rapid release external coat. Memantine is used as an anti-Alzheimer's drug or an anti-Parkinson's drug. Particular embodiments of the invention provide osmotic devices having predetermined release profiles. One embodiment of the osmotic device includes an external coat that has been spray-coated rather than compression-coated onto the device. The device is useful for the treatment of depression in Alzheimer's disease and / or Parkinson's disease patients. The device and method can also be used to treat or ameliorate other symptoms associated with Alzheimer's disease, Parkinson's disease or any other neurological disorder. Other dosage forms that provide a controlled, sustained or extended release of venlafaxine in combination with a rapid or immediate release of memantine are useful in the invention.

The invention relates to the use of NMDA receptor antagonists such as 1-aminocyclohexane derivatives to modify deposition of potentially toxic and fibrillogenic Aβ peptides in amyloidopathies. Specifically, the invention relates to the ability of memantine to intervene in the processing of APP and decrease the levels of fibrillogenic Aβ peptides.

The present invention relates to the treatment of individuals diagnosed with multiple sclerosis, emotional lability or pseudobulbar affect comprising administering to said individual an effective amount of a 1-aminocyclohexane derivative, namely memantine or neramexane.

Memantine compositions and methods of use are described herein. In some embodiments, the compositions comprise memantine and an absorption enhancer, or memantine and an elimination enhancer, or memantine and an absorption enhancer and an elimination enhancer.

The invention relates to transdermal therapeutic systems (TTS) which include, as active ingredient, the NMDA receptor antagonist memantine or one of its physiologically compatible salts. The TTSs can be produced and used for treating diseases of the central nervous system.

The present invention relates to the treatment of compulsive, impulsive and pervasive developmental disorders. More particularly, the methods described herein comprise administration of memantine to an individual suffering from such a disorder in an amount effective to relieve one or more symptoms of said disorder. In particularly preferred aspects, the invention is directed to the use of memantine for the treatment of autism.

This invention relates to an oral dosage form containing between 1 mg and 100 mg of memantine, wherein said dosage form does not contain 10 mg of memantine or 20 mg of memantine, and wherein said dosage form is not prepared by the patient or a person administering the drug to the patient who divides the dosage form containing a larger dose of memantine. Other aspects of this invention relate to pharmaceutical products comprising said dosage forms and methods of administering memantine and treating disease with said dosage form.

The present invention provides a method for the treatment, prevention, or delay of progression of mild, or mild-to-moderate Alzheimer's disease, by administering an effective dose of memantine. The present invention also provides a method for preventing the decrease in glucose metabolism in the cortical and sub-cortical regions of the brain in subjectes with mild, or mild-to-moderate Alzheimer's disease.

The present invention provides a method for treating schizophrenia in a patient in need thereof, the method comprising administering to the patient a therapeutically effective amount of memantine, or a pharmaceutically acceptable salt thereof, and a therapeutically effective amount an atypical antipsychotic. The method of the present invention embodies both the co-administration of memantine with an atypical antipsychotic, and the use of memantine as an adjunctive treatment to treatment with an atypical antipsychotic.

The present invention relates to the treatment of compulsive, impulsive and pervasive developmental disorders. More particularly, the methods described herein comprise administration of memantine to an individual suffering from such a disorder in an amount effective to relieve one or more symptoms of said disorder. In particularly preferred aspects, the invention is directed to the use of memantine for the treatment of autism

The invention discloses a new making method of amantadine, which comprises the following steps: adopting 1, 3-dimethyl adamantane as raw material to do halogenation and Ritter reaction; separating and purifying the make 1-subtituted-amido-3, 5-dimethyl diamantine as intermediate; hydrolyzing the intermediate into diamantine; extracting; obtaining rough product; recrystallizing the rough product to obtain the fined product; fitting for industrial manufacturing.

The present invention provides an osmotic device containing controlled release venlafaxine in the core, wherein the osmotic device exhibits a reduced food effect as compared to a reference controlled release capsule formulation. Some embodiments include venlafaxine in controlled release form in combination with an anti-Alzheimer's or an anti-Parkinson's drug in a rapid release external coat. Memantine is used as an anti-Alzheimer's drug or an anti-Parkinson's drug. Particular embodiments of the invention provide osmotic devices having predetermined release profiles. One embodiment of the osmotic device includes an external coat that has been spray-coated rather than compression-coated onto the device. The device is useful for the treatment of depression in Alzheimer's and / or Parkinson's patients. The device and method can also be used to treat or ameliorate other symptoms associated with Alzheimer's disease, Parkinson's disease or any other neurological disorder. Other dosage forms that provide a controlled, sustained or extended release of venlafaxine in combination with a rapid or immediate release of memantine are useful in the invention.

The present invention relates to oral dosage forms comprising Memantine or a pharmaceutically acceptable salt thereof, pharmaceutical formulations comprising the oral dosage forms, and methods for treating mild, moderate or severe Alzheimer's dementia, or neuropathic pain comprising the oral dosage forms and formulations.

A process for synthesizing adamantanamine hydrochloride from 1,3-dimethyl adamantane include browo reaction while Ritter reaction, adding the resultant mixture in the mixture of polar proton solvent and alcohol solvent, stirring while alcoholyzing, regulating pH, alkaline hydrolyzing to generate adamantanamine, extracting in arylhydrocarbon solvent, water washing, drying, filtering, vacuum concentrating of filtrate, reacting on concentrated hydrochloric acid to obtain coarse product, and recrystallizing in the mixed solvent of alcohol and arylhydrocarbon.

Orally dissolving formulations, e.g., tablets (ODTs) and films (ODFs) comprising memantine and methods of treating conditions, including childhood behavioral disorders and Alzheimer's disease, by administering orally dissolving formulations are provided. The orally dissolving formulations of the present invention may be used to treat various conditions, but is particularly suited to treat childhood behavioral disorders, such as autistic spectrum disorders or combined type Attention-Deficit / Hyperactivity Disorder (ADHD) and also to treat elderly patients suffering from Alzheimer's disease.

The present invention provides a method for the treatment of individuals diagnosed with a childhood behavioral disorder such as autistic spectrum disorders or combined type Attention-Deficit / Hyperactivity Disorder (ADHD) by administering an effective amount of memantine.

A pharmaceutical combination of memantine and a non-anticholinergic antiemetic agent for the treatment of hypocholinergic disorders in further combination with high doses of donepezil and with solifenacin, and kits comprising said combination. A pharmaceutical combination of memantine and solifenacin for the treatment of hypocholinergic disorders, including Alzheimer type dementia, in further combination with high doses of donepezil, and kits comprising said combination.

The invention is directed to easily dissolved, stable dose proportional pharmaceutical compositions, comprising granulated memantine and methods of preparing the same. In particular, the invention is directed to granulated memantine pharmaceutical compositions in the form of film coated tablets.

The present invention relates to a novel assay for the analysis of memantine and related compounds.