Drug delivery agents consisting of compounds that facilitate delivery of a wide range of pharmaceuticals; Drug delivery agents in the form of a coating for CAPSULES that facilitate the delivery of a wide range of pharmaceuticals; Drug delivery agents in the form of capsules that provide controlled release of the active ingredients for a wide variety of pharmaceuticals; Drug delivery agents in the form of powders that provide controlled release of the active ingredients for a wide variety of pharmaceuticals; Immunostimulants; Pharmaceutical preparations, namely, a drug delivery system comprising polymer-based oral tablets for the continuous release of a wide variety of therapeutic agents