An antibiotic and antiprotozoal agent; active against P. asaccharolyticus, C. perfringens, C. septicum, B. fragilis, and B. thetaiotaomicron (MICs = 3.6, 7.3, 1.8, 7.3, and 7.3 µM, respectively); reduces parasitemia in rats when cultured with T. congolense or T. brucei prior to infection