ABSTRACT

I. INTRODUCTION “Pills, until almost completely replaced by compressed tablets around the middle of this century, were the most widely used dosage form. By defini­ tion, they were small spherical or ovoid products incorporating a medicinal agent in a doughy matrix. The pill mass consisted of two parts: the active ingredient, and the excipient used to form the pill, giving it the proper con­ sistency and acting as a diluent.”