Drug delivery agents in oral dosage forms, namely, compressed and formed products, microcapsules, beads, granules, powders and combinations thereof that provide controlled release of the active ingredients for a wide range or pharmaceuticals, including antitussives, antihistamines, decongestants, alkaloids, mineral supplements, herbals, laxatives, vitamins, antacids, ion exchange resins, anti-cholesterolemics, antiarrhythmics, antipyretics, analgesics, appetite suppressants, expectorants, ant...