Abstract: The invention is directed to a drug delivery device for controlled release of a drug, such as methylphenidate hydrochloride. The drug deliver device has a drug core, having a plug embedded therein, and at least a first coating that at least partially surrounds the core. The plug may be hollow or solid, and swells upon absorption of water, bursting through the first coating. The drag delivery device enables zero-order drug release profiles as well as more complicated release profiles to be obtained.

Abstract: A solid dosage form for oral administration to a patient comprising a core tablet sheathed in an annular body of compressed powder or granular material is provided. A preferred embodiment of the solid dosage form reduces contact of the active ingredient in solid form with the mucosa lining the gastrointestinal tract, which is particularly advantageous for delivering an ulcerative drug. A tool set comprising a columnar punch and a punch assembly comprising an annular punch and core rod, and a tableting process for making the solid dosage form are also provided.

Abstract: A zero-order release pharmaceutical dosage form for oral administration to a patient comprising a core tablet sheathed in an annular body of compressed powder or granular material is provided. A preferred embodiment of the zero-order release pharmaceutical dosage form is a solid pharmaceutical dosage form which reduces contact of the active ingredient in solid form with the mucosa lining the gastrointestinal tract, which is particularly advantageous for delivering an ulcerative drug. A process for making the zero-order release pharmaceutical dosage form are also provided.

Abstract: A zero-order release pharmaceutical dosage form for oral administration to a patient comprising a core tablet sheathed in an annular body of compressed powder or granular material is provided. A preferred embodiment of the zero-order release pharmaceutical dosage form is a solid pharmaceutical dosage form which reduces contact of the active ingredient in solid form with the mucosa lining the gastrointestinal tract, which is particularly advantageous for delivering an ulcerative drug. A process for making the zero-order release pharmaceutical dosage form are also provided.

Abstract: The present invention provides a pharmaceutical dosage form for oral administration to a patient comprising an enterically coated core tablet sheathed in an annular body of compressed powder or granular material. The present invention also provides a pharmaceutical dosage form for co-administration of two or more active pharmaceutical ingredients. The present invention also provides a method comprising administering the dosage form of the present invention to a patient with impaired gastric motility, such as a patient with Parkinson's disease.

Abstract: Provided are pharmaceutical dosage forms that include rasagiline formulated and fabricated so that release of rasagiline in the stomach is retarded or inhibited.

Abstract: A solid dosage form for oral administration to a patient comprising a core tablet sheathed in an annular body of compressed powder or granular material is provided. A preferred embodiment of the solid dosage form reduces contact of the active ingredient in solid form with the mucosa lining the gastrointestinal tract, which is particularly advantageous for delivering an ulcerative drug. A tool set comprising a columnar punch and a punch assembly comprising an annular punch and core rod, and a tableting process for making the solid dosage form are also provided.

Abstract: A zero-order release pharmaceutical dosage form for oral administration to a patient comprising a core tablet sheathed in an annular body of compressed powder or granular material is provided. A preferred embodiment of the zero-order release pharmaceutical dosage form is a solid pharmaceutical dosage form which reduces contact of the active ingredient in solid form with the mucosa lining the gastrointestinal tract, which is particularly advantageous for delivering an ulcerative drug. A process for making the zero-order release pharmaceutical dosage form are also provided.

Abstract: A solid dosage form for oral administration to a patient comprising a core tablet sheathed in an annular body of compressed powder or granular material is provided. A preferred embodiment of the solid dosage form reduces contact of the active ingredient in solid form with the mucosa lining the gastrointestinal tract, which is particularly advantageous for delivering an ulcerative drug. A tool set comprising a columnar punch and a punch assembly comprising an annular punch and core rod, and a tableting process for making the solid dosage form are also provided.