It is known that the pattern of plasrna gbicose reaponse to a single dose of interrnediateacting insulin in exogenous isulin requiring patients froim normaI to delayed, transient and unstable responses according to the individual patients as welI as to this coursa of diabetes. Therefore, there are some difference in the methods of insulin injection depending upon the patterns of he plasma glucose responses. Someone requires aplitting of intermediate-acting insuIin and others a combination off intermrdiate acting and short- acting insulin, We reviewed plasma glucose responses and the therapeutic effects in 224 cases of insulinrequring Korean diabetice with the following reaults: