Abstract
The number of the used medicines and their prescription frequency were investigated using prescriptions in 22 months from April 1978 to January 1980 to understand the real situation of the medicines used in inpatients in each department of our hospital.
The results were as follows: 1) Even in the department using largest number of drugs, the number hardly accounted for 20% of all the items in stock. 2) There was a difference in the prescribed medicines between internal medicine and surgery. Generally, medicines for dispensation were used morefrequently in the former, whereas those for injection were used more frequently in the latter. 3) In each department, medicines peculiar to their department were frequently used. 4) From the regression lines, it was found that the shorter the time of the used.medicines was, the more similar their prescription frequency was.
