Abstract: Described herein is a method for forming multi-layer drug dosage forms having at least two layers. In the method, a first formulation comprising a non-gelling matrix forming agent and having a first density is dosed into a preformed mold. A second formulation comprising a non-gelling matrix former and having a second density not equal to the first density is subsequently dosed into the preformed mold. Then, the combination of the formulations dosed into the mold is freeze dried to form the multi-layer dosage form having at least two layers. The use of a density difference between the first and second formulations ensures formation of a product with two distinct layers.

Abstract: Described herein is a method for forming multi-layer drug dosage forms having at least two layers. In the method, a first formulation comprising a non-gelling matrix forming agent and having a first density is dosed into a preformed mold. A second formulation comprising a non-gelling matrix former and having a second density not equal to the first density is subsequently dosed into the preformed mold. Then, the combination of the formulations dosed into the mold is freeze dried to form the multi-layer dosage form having at least two layers. The use of a density difference between the first and second formulations ensures formation of a product with two distinct layers.

Abstract: The present invention provides compositions and methods for the multiple release of a drug in the gastrointestinal tract of a subject through the use of an oral multiple drug release system. The system provides site-specific release of the drug to both the small intestine and the colon in the form of multiple controlled doses for long-lasting efficacy, thereby reducing the drug dosing frequency.

Abstract: The present invention provides compositions and methods for the multiple release of a drug in the gastrointestinal tract of a subject through the use of an oral multiple drug release system. The system provides site-specific release of the drug to both the small intestine and the colon in the form of multiple controlled doses for long-lasting efficacy, thereby reducing the drug dosing frequency.

Abstract: The present invention provides compositions and methods for the multiple release of a drug in the gastrointestinal tract of a subject through the use of an oral multiple drug release system. The system provides site-specific release of the drug to both the small intestine and the colon in the form of multiple controlled doses for long-lasting efficacy, thereby reducing the drug dosing frequency.