436 patients with various infections were treated with 2 kinds of enoxacin preparations, tablets in 336 cases and capsules in 100 cases. The total effective rate for tablets and capsules was 97.0% and 95.0% respectively. The bacterial eradication rate was 96.8% for tablets and 96.7% for capsules. Adverse reactions were few and mild. A randomized study of enoxacin and norfloxacin in the treatment of 209 patients with enteric and urinary infections was carried out simultaneously, the effective rate of enoxacin (99.1%) was similar to norfloxacin (95.0%). The incidence of side effects in norfloxacin group was slightly higher than that in enoxacin (P less than 0.05).