DVL Sodium Sulfamethazine Solution 25% is an oral livestock health product for poultry, cattle, calves, sheep, and swine. This liquid formula delivers 25% sodium sulfamethazine for antibiotic and antiparasitic uses as indicated on the label. The convenient 4 L bottle supports farm use across herds and flocks, with oral administration per species directions. DIN 00308218; available without a prescription in Canada, except in Quebec where a prescription is required.