Used primarily as an antibiotic in veterinary medicine, especially in livestock and aquaculture. It is effective against a range of Gram-positive bacteria and some Gram-negative pathogens. Commonly applied in fish farming to control bacterial infections such as vibriosis and furunculosis. Also used in research settings for selection in cell culture systems where resistance genes are present. Its thiocyanate salt form improves solubility, making it suitable for water-based treatments in aquatic environments.