[Significance of phenacetin abuse in urology].

With the help of the biotransformation the dangerousness of phenacetine is explained. The sequels of the phenacetine abuse for the urinary system are demonstrated. Conditioned by the increase of the consumption of analgesics during the next years in the GDR must be reckoned with an increased number of diseases of drug-conditioned chronic interstitial nephritis and tumours of the urinary tracts.