The Statistical Investigation on The Blister Package, so called PTP (Press Through Package), as Foreign Bodies in Esophagus by Original Reports Published

At present the blister package of “press through packaging” (PTP) style is widely adapted for tablets and capsules in Japan. Using original reports that was searched out with the “IGAKU-CHUO-ZASSHI” (Japan Centra Revuo Medicina) from 1981 to 1986, We statistically observed a number of patients for PTP foreign bodies in esophagus. The statistics showed that the number of patients showed an increasing tendency in Japan. The age's population of patients was mainly distributed among the years 40 to 70, and there were more female patients than male patients. Most patients recognized that the PTP played the only role as the package for tablets and capsules. These facts suggest the necessity of phamacist's consultations to the patients.