Durvet DuraZyme Powder for Calves is a natural non-medicated biological supplement designed to support newborn beef and dairy calves. It contains lactic acid producing bacteria, dried milk protein, lactase enzymes, and dried egg solids to help fight disease, support digestion, and establish healthy gut microflora. The powder increases energy and vigor, encouraging nursing and improving colostrum intake, making it ideal for weak, chilled, scouring, or starting calves. Fast dissolving and safe to use with medications, it has no slaughter withdrawal and is approved for use in newborn calves. Administer one level scoop (5 g) immediately after birth.