Oxy 500 Calf Bolus is recommended for oral administration for the control and treatment of the following diseases of beef and dairy calves caused by organisms sensitive to oxytetracycline: bacterial enteritis (scours, diarrhea) caused by Salmonella typhimurium and Escherichia coli(colibacillosis); bacterial pneumonia (shipping fever complex, pasteurellosis) caused by Pasteurella multocida.