Use of substituted 3-phenyl-5-alkoxy-1,3,4-oxadiazol-2-one for the preparation of drugs having an inhibitory effect on pancreatic lipase

The invention relates to the use of substituted 3-phenyl-5-alkoxy-1,3,4-oxadiazol-2-ones as well as their pharmacologically acceptable salts and acid addition salts for producing medicaments, which exhibit an inhibitory effect on pancreatic lipase, PL, , DOLLAR A is the use of compounds of formula 1 DOLLAR F1 in which the radicals have the meanings given, and their pharmacologically acceptable salts and acid addition salts thereof for the manufacture of a medicament for the prophylaxis or treatment of obesity or diabetes mellitus type 1 and 2 described below.