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 sublingual wafers 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 edible wafers for wrapping powdered pharmaceuticals; Drug delivery agents in the form of powders that provide controlled release of the active ingredients for a wide variety of pharmaceuticals; Drug delivery agents in the form of tablets that provide controlled release of the active ingredients for a wide variety of pharmaceuticals; Drug delivery agents in the form of sublingual wafers that facilitate the delivery of pharmaceutical preparations; Drug testing kits comprised of medical diagnostic reagents and assays for testing body fluids; Implantable subcutaneous drug delivery devices sold filled with pharmaceutical preparations for treating erectile dysfunction; Pharmaceutical preparations for inducing erections; Stem cells for medical purposes; Pharmaceutical for the treatment of erectile dysfunction; Pharmaceutical preparations, namely, a drug delivery system comprising polymer-based oral tablets for the continuous release of a wide variety of therapeutic agents