Florfenicol has been demonstrated to be active in vitro and in vivo against Mannheimia (Pasteurella ) haemolytica, Pasteurella multocida, and Haemophilus somnus.

• 氟苯尼考在体内、体外均有明显活性，能够抑制溶血曼海姆菌、多杀巴斯德菌和睡眠嗜血杆菌。