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Abstract

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.

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First Claim