The salmon industry incurs substantial costs each year due to salmon lice infestations. Moreover, the number of salmon lice controls, determined through the traffic light system, regulates whether producers can expand, reduce, or maintain their current production levels. The primary objective of this system is to safeguard wild salmon populations, but lice also pose health and welfare concerns for farmed salmon.

When the lice threshold is surpassed, treatment becomes necessary. Presently, there exist various options for lice removal and protection, yet medical treatment remains one of the crucial methods.

Despite significant reductions in the use of drugs against salmon lice in recent years, the demand for effective medications persists. The development of reduced sensitivity and resistance poses a major challenge in salmon lice treatment, highlighting the ongoing importance of research into novel and efficacious methods and substances.