Abstract: A multiple pulsed dose drug delivery system for pharmaceutically active amphetamine salts, comprising an immediate-release component and an enteric delayed-release component wherein (1) the enteric release coating has a defined minimum thickness and/or (2) there is a protective layer between the pharmaceutically active amphetamine salt and the enteric release coating and/or (3) there is a protective layer over the enteric release coating. The product can be composed of either one or a number of beads in a dosage form, including either capsule, tablet, or sachet method for administering the beads.

Abstract: A pharmaceutical preparation comprising a stable, surface-active emulsion or dispersion of a pharmaceutical agent incorporated into an emulsion (i) having a hydrophobic discontinuous phase of a long chain carboxylic acid or ester or alcohol thereof dispersed in an aqueous phase or (ii) having a hydrophilic discontinuous phase dispersed in a hydrophobic phase of a long chain carboxylic acid or alcohol thereof. The emulsion with pharmaceutical agent is incorporated into a pharmaceutical carrier suitable for oral delivery.