oral administration can be any orally acceptable dosage form including but not limited to capsules tablets emulsions and aqueous suspensions dispersions and solutions in the case of tablets for oral use carriers that are commonly used include lactose and corn starch lubricating agents such as magnesium stearate are also typically added for oral administration in a capsule form useful diluents include lactose and dried corn starch when aqueous suspensions or emulsions are administered orally the active ingredient can be suspended or dissolved in an oily phase combined with emulsifying or suspending agents if desired certain sweetening flavoring or coloring agents can be added a nasal aerosol or inhalation composition can be prepared according to techniques well known in the art of pharmaceutical formulation an imidazolidinone or imidazolinethione compound containing composition can also be administered in the form of suppositories for rectal administration the carrier in the pharmaceutical composition must be u201c acceptable u201d in the sense of being compatible with the active ingredient of the formulation and preferably capable of stabilizing it and not deleterious to the subject to be treated for example one or more solubilizing agents such as cyclodextrins which form more soluble complexes with the imidazolidinone or imidazolinethione compounds can be utilized as pharmaceutical carriers for delivery of the active compounds examples of other carriers include colloidal silicon dioxide magnesium stearate sodium lauryl sulfate and d amp c yellow 10 suitable in vitro assays can be used to preliminarily evaluate the.