The Herpless powder product enhances the treatment of infections caused by the feline herpes virus (FHV-1) in cats of any age. For more effective use, it is recommended to administer it as early as possible, in combination with the specialized treatment given to cats affected by the FHV-1 virus and presenting clinical symptoms. It also has a positive effect on reducing the level of infection and the frequency of its recurrence, either on its own or in conjunction with specific treatments.