Used primarily as an anesthetic in veterinary medicine, especially in aquaculture. It is commonly applied to sedate or anesthetize fish during handling, tagging, transportation, or surgical procedures. The compound works by blocking sodium channels in nerve cells, thereby reducing nerve impulse transmission and inducing a temporary state of immobility and unconsciousness. It is valued for its rapid onset and ease of use in water-based environments. Also utilized in research settings for studying fish physiology and behavior. Proper dosage is critical to ensure effectiveness while minimizing stress or toxicity to aquatic organisms.