Treatment of seasonal or year-round allergic rhinitis in adults and children aged 2 years and older. Preventive treatment of allergic rhinitis of medium and severe course is recommended to start 4 weeks before the expected start of the dusting season. As an auxiliary therapeutic agent in the treatment of acute episodes of sinusitis with antibiotics in adults (including elderly patients) and children over 12 years of age. Treatment of symptoms of acute rhinosinusitis without signs of severe bacterial infection in adults and children over 12 years of age. Treatment of nasal polyps and related symptoms, including nasal congestion and loss of smell, in patients aged 18 and over.