... In horses: Upper respiratory infections, strangles, peritonitis, fistula of the withers, foraling paralysis, woundinfections.phlegmon, thrush and ... Pneumonia joint infection, wound infections, bacterial enteritis.Route of administration: Oxytetracycline is administered by intramuscular and intravenous routes ... 28 days-For Milk: 7 daysWarning:keep out of reach of children. Oxytetracycline Hcl Injection