i and or its pharmaceutically acceptable salts in the pharmaceutical preparations normally ranges from about 0 2 to about 800 mg preferably from about 0 5 to about 500 mg in particular from about 1 to about 200 mg per dose but depending on the type of the pharmaceutical preparation it may also be higher the pharmaceutical preparations usually comprise from about 0 5 to about 90 by weight of the compounds of the formula i and or their pharmaceutically acceptable salts the production of the pharmaceutical preparations can be carried out in a manner known per se to this end one or more compounds of the formula i and or their pharmaceutically acceptable salts together with one or more solid or liquid pharmaceutical carrier substances and or additives or auxiliary substances and if desired in combination with other pharmaceutically active compounds having therapeutic or prophylactic action are brought into a suitable administration form or dosage form which can then be used as a pharmaceutical in human or veterinary medicine for the production of pills tablets sugar coated tablets and hard gelatin capsules it is possible to use for example lactose starch for example maize starch or starch derivatives talc stearic acid or its salts etc soft gelatin capsules and suppositories can comprise for example fats waxes semisolid and liquid polyols natural or hardened oils etc suitable carrier substances for the preparation of solutions for example of solutions for injection or of emulsions or syrups are for example water physiologically sodium chloride solution alcohols such as ethanol glycerol polyols sucrose invert sugar glucose mannitol vegetable oils etc it is also possible to lyophilize the compounds of the formula i and their pharmaceutically acceptable salts.