Summary: Dementia is a term used to describe the syndrome caused by a brain disease of a chronic and progressive character in which higher cortical function is impaired. An integral part of dementia are neuropsychiatric disorders. Behavioral disorders include several categories of symptoms and may change with the duration of the disease. Proceedings in behavioral disorders in dementia should begin with careful diagnosis. The recommended treatment of the first choice are non-pharmacological therapies, which include sensory methods, structured activities or methods based on social contacts. Pharmacological treatment should be reached when non-pharmacological interventions fail or when behavioral disorders are severe. The groups of drugs used in this indication include: cholinesterase inhibitors and memantine, some antidepressants, antiepileptics, benzodiazepines and antipsychotics. When using pharmacotherapy, it is worth remembering that the majority of patients with dementia are older people who are recommended to use monotherapy, start with small doses of drugs and slow their increase and particular vigilance with regard to potential drug interactions.