(Boehringer Ingelheim) Bio-Mycin 200 is a long-lasting, broad-spectrum antibiotic containing 200 mg oxytetracycline per ml. Bio-Mycin 200 is effective in the treatment of a wide range of diseases, including pinkeye, footrot, and pneumonia. For use in beef cattle, dairy cattle, calves, and swine. Approved for 96 hour milkout. Bio-Mycin 200 provides therapeutic levels of oxytetracycline in the blood for 3 days. Most animals show a noticeable improvement within 24 to 48 hours. Give 4.5 ml per 100 pounds IM or SQ in neck.