"An effective antibiotic that lasts a full three days with just one treatment.For use in calves.For treatment of bacterial pneumonia, colibacillosis, and calf diphtheria.For use on calves, designed to be administered orally.Highly concentrated - provides peak antibiotic blood levels of 250 p. P. M. - quickly acts to break fever and illness.Short withdrawal time - 12 days.Antibacterial Sulfamethazine Sustained Release Bolus.Size25 COUNTColor "BCI - 109488