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We conducted a randomized, open-label, controlled, multicenter study to compare sulbactam/cefoperazone with cefotaxime in terms of efficacy and safety for the treatment of hospitalized patients with moderate-to-severe bacterial infections. More than two-thirds of the pathogens recovered from these patients produced beta-lactamase. Two hundred-seven (88.1%) of the 235 patients enrolled completed the study and were included in the efficacy and safety evaluations. One hundred-three patients received sulbactam/cefoperazone (2-4 g/d) administered in evenly divided doses every 12 hours by a 30-minute intravenous drip; 104 patients received cefotaxime (6-12 g/d) administered in evenly divided doses every 6 or 8 hours by a 30-minute intravenous drip. The overall efficacy rates (i.e., cure or markedly improved) were 95% for the sulbactam/cefoperazone group and 90% for the cefotaxime group (P = .186), whereas the bacterial eradication rates were 85% for the sulbactam/cefoperazone group and 81% for the cefotaxime group (P = .467). Both drug regimens were well tolerated. Sulbactam/cefoperazone is effective and safe for the treatment of moderate-to-severe bacterial infections caused mainly by beta-lactamase-producing organisms.

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