A Double-Blind, Randomized Comparison of Aztreonam Plus Clindamycin with Tobramycin Plus Clindamycin in Abdominal Infections.

Seventy patients with intraabdominal infections were randomly assigned in double-blinded fashion to receive either the combination of tobramycin plus clindamycin (TM/C) or aztreonam plus clindamycin (AZ/C). Thirty-four patients received AZ/C and 36 were given TM/C. Average ages were 62 years (TM/C) and 66 years (AZ/C).