[The determination of the information potential of characterization of drug preparations]. 
The quantum of information on safe and effective application of pharmaceutical preparations is experiential different.  The differences can be shown better by pictograms than by words.  The measure of informations can be weighted accordingly of the usefulness and the decisive situation on delivery the drugs.  The quantified results taken from the sortiments of the GDR and CSSR for 30% of all drugs and especially for 12 indications groups are very high.  Preparations can be ranked according their "informational potentials" (IPAFW).  The determination of IPAFW gives a new look on rank of pharmaceutical preparations on the pharmacy service.