1.long-acting,low toxicity 2.GMP certificate 3.manufacture factory 4.competitive price and quick shippment... Animal Medicine Oxytetracycline Injection PHARMACOLOGICAL ACTIONSOxytetracycline is a broad spectrum,long-acting antibiotics.It has significant inhibitory effect on both Gram-positive bacteria such as pneumococcus, streptococcus, staphylococcus, Bacillus anthracis, Clostridium tetani, ...