in combination with a pharmaceutically acceptable vehicle such as an inert diluent or an assimilable edible carrier they may be enclosed in hard or soft shell gelatin capsules may be compressed into tablets or may be incorporated directly with the food of the patient 39 s diet for oral therapeutic administration the active compound may be combined with one or more excipients and used in the form of ingestible tablets buccal tablets troches capsules elixirs suspensions syrups wafers and the like such compositions and preparations should contain at least 0 1 of active compound the percentage of the compositions and preparations may of course be varied and may conveniently be between about 2 to about 60 of the weight of a given unit dosage form the amount of active compound in such therapeutically useful compositions is such that an effective dosage level will be obtained the tablets troches pills capsules and the like may also contain the following binders such as gum tragacanth acacia corn starch or gelatin excipients such as dicalcium phosphate a disintegrating agent such as corn starch potato starch alginic acid and the like a lubricant such as magnesium stearate and a sweetening agent such as sucrose fructose lactose or aspartame or a flavoring agent such as peppermint oil of wintergreen or cherry flavoring may be added when the unit dosage form is a capsule it may contain in.