FLOR-50 is indicated for preventive and therapeutic treatment of gastrointestinal and respiratory tract infections, caused by florfenicol sensitive micro-organisms such as Actinobaccillus spp. Pasteurella spp. Salmonella spp. and Streptococcus spp. in swine and poultry. The presence of the disease in the herd should be established before preventive treatment. Medication should be initiated promptly when respiratory disease is diagnosed.