examples of excipients diluents and carriers that are suitable for such formulations include the following fillers and extenders such as starch sugars mannitol and silicic derivatives binding agents such as carboxymethyl cellulose and other cellulose derivatives alginates gelatin and polyvinyl pyrrolidone moisturizing agents such as glycerol disintegrating agents such as agar agar calcium carbonate and sodium bicarbonate agents for retarding dissolution such as paraffin resorption accelerators such as quaternary ammonium compounds surface active agents such as cetyl alcohol glycerol monostearate adsorptive carriers such as kaolin and bentonire and lubricants such as talc calcium and magnesium stearate and solid polyethyl glycols final pharmaceutical forms may be pills tablets powders lozenges syrups aerosols saches cachets elixirs suspensions emulsions ointments suppositories sterile injectable solutions or sterile packaged powders depending on the type of excipient used additionally the compounds of this invention are well suited to formulation as sustained release dosage forms the formulations can also be so constituted that they release the active ingredient only or preferably in a particular part of the intestinal tract possibly over a period of time such formulations would involve coatings envelopes or protective matrices which may be made from polymeric substances or waxes the formulations which follow are given for purposes of illustration and are not intended.