Used for the treatment of digestive and respiratory infections caused by bacteria susceptible to Ampicillin and Colistin in broiler chickens. Colibacillosis, Salmonellosis, Chicken Cholera (Pasteurellosis), Infectious koriza, Clostridium, Streptococcus and Staphylococcus infections, Campylobacteriosis, Shigella sp., Klebsiella sp., Proteus sp., Pseudomonas aeruginosa, Fusiformis sp.