The type of medication prescribed to treat dementia depends on the symptom being treated, according to WebMD. Medication is prescribed to manage mood and behavior problems, correct conditions that cause dementia, prevent additional strokes in people with vascular dementia and to help patients retain cognitive functioning as long as possible.
As of 2015, two types of medication have been approved by the U.S. Food and Drug Administration to assist with cognitive functions, states the Alzheimer's Association. They are memantine and cholinesterase inhibitors, such as Razadyne and Aricept.
Antipsychotic drugs, including risperidone and olanzapine, as well as antidepressants are prescribed to assist with behavior problems. However, it is possible to manage some behavior problems without medication, advises WebMD.