2011 年 5 巻 1 号 p. 1-4
In order to reduce the medical expenditures, the Japanese government facilitates more use of generic drugs. In order to prepare a concrete data for such a program, we have done a situation analysis about generic use among the cataract surgery patients. Data for this study were extracted from the Japanese inpatient administrative claims database, the DPC database. We have extracted 58,750 surgical cataract cases from this database (1st July 1 2010 to 31st October 2010). In total, studied cases used 20,946,838 points (209 million JPY) for antibiotics of which 1,359,864 (13.6 million; 6.5%) was for generic. The most used antibiotics was CFPN-PI (5,741,156 points) followed by FMOX (3,872,562 points) and CFDN (3,651,493 points). These three antibiotics correspond to 63.3% of total use (monetary base) and do not have any equivalent generics. It is interesting that hospitals with larger cases used less generics. The present analysis has clarified that there is a still room for cost containment concerning the pharmaceutical use in Japan.