Brain & Nervous System Drugs

 QUETIAPINE treats schizophrenia and bipolar disorder. It works by balancing the levels of dopamine and serotonin in your brain, hormones that help regulate mood, behaviors, and thoughts. It belongs to a group of medications called antipsychotics.

 Olanzapine is used to treat schizophrenia. It may also be used alone or with other medicines (eg, lithium or valproate) to treat mania or mixed episodes that is part of bipolar disorder (manic-depressive illness).

Memantine is used to treat the symptoms of Alzheimer's disease (AD; a brain disease that slowly destroys the memory and the ability to think, learn, communicate and handle daily activities)

. Donepezil is used to treat dementia (memory loss and mental changes) associated with mild, moderate, or severe Alzheimer's disease.