Investigation on antibiotics in a hospital for a one-year period.

Defined daily dose (DDD) units were used to analyze the antibiotic utilization in a University Military Hospital for a one-year period. The data were collected from hospital records. The mostly prescribed drug groups were penicillins (broad-spectrum), systemic sulfonamides and combinations and tetracyclines. Amoxycillin, doxycycline and co-trimoxazole were most frequently used. Circannual variations were observed only in the utilization of amoxycillin and doxycycline during the year.