Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Methods of nighttime administration of amantadine to reduce sleep disturbances in patient undergoing treatment with amantadine are described, as well as compositions of extended release amantadine that are suitable for nighttime administration.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: A method of administering amantadine is provided. The method comprises orally administering to a subject a pharmaceutical composition comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of the amantadine. A dose of the composition provides a mean change in amantadine plasma concentration as a function of time (dC/dT) that is less than 40% of the change in amantadine plasma concentration provided by a dose of the same quantity of an immediate release form of amantadine. The change in plasma concentration over time (dC/dT) is measured in a single dose human pharmacokinetic study in a defined time period of 0 to 4 hours after administration. The amantadine, or pharmaceutically acceptable salt thereof, is administered once daily at a dose of 300 to 500 mg per day.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Disclosed are compositions comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of amantadine. Methods of administering the same are also provided.

Abstract: Compositions and methods for administering memantine to a subject are provided. In particular, a solid pharmaceutical composition in a unit dosage form for once daily oral administration is provided. The compositions comprises an extended release formulation of 22.5 mg to 33.75 mg memantine, or a pharmaceutically acceptable salt thereof, wherein administration of a dose of the composition to a human subject provides a mean plasma memantine concentration profile characterized by a change in memantine concentration as a function of time (dC/dT) that is less than 50% of the dC/dT provided by the same quantity of an immediate release form of memantine, determined in a time period between 0 hours to 6 hours after administration of memantine, and wherein dC/dT is measured in a single-dose human PK study. Methods of treating dementia, in particular Alzheimer's diseases, using the compositions are provided.

Abstract: A method of administering amantadine is provided. The method comprises orally administering to a subject a pharmaceutical composition comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of the amantadine. A dose of the composition provides a mean change in amantadine plasma concentration as a function of time (dC/dT) that is less than 40% of the change in amantadine plasma concentration provided by a dose of the same quantity of an immediate release form of amantadine. The change in plasma concentration over time (dC/dT) is measured in a single dose human pharmacokinetic study in a defined time period of 0 to 4 hours after administration. The amantadine, or pharmaceutically acceptable salt thereof, is administered once daily at a dose of 300 to 500 mg per day.

Abstract: A method of administering amantadine is provided. The method comprises orally administering to a subject a pharmaceutical composition comprising amantadine, or a pharmaceutically acceptable salt thereof, and one or more excipients, wherein at least one of the excipients modifies release of the amantadine. A dose of the composition provides a mean change in amantadine plasma concentration as a function of time (dC/dT) that is less than 40% of the change in amantadine plasma concentration provided by a dose of the same quantity of an immediate release form of amantadine. The change in plasma concentration over time (dC/dT) is measured in a single dose human pharmacokinetic study in a defined time period of 0 to 4 hours after administration. The amantadine, or pharmaceutically acceptable salt thereof, is administered once daily at a dose of 300 to 500 mg per day.

Abstract: The invention provides extended release amantadine compositions for once daily administration of amantadine to a subject.