Used primarily in the management of moderate to severe Alzheimer's disease, this compound helps improve cognitive function by regulating glutamate activity in the brain. It acts as an NMDA receptor antagonist, preventing excessive glutamate from causing overstimulation of nerve cells, which can lead to damage or death. This action helps slow the progression of symptoms such as memory loss, confusion, and difficulties with daily activities. It is also explored for use in other neurological conditions, including certain types of dementia, neuropathic pain, and as an adjunct in treatment-resistant depression. Its neuroprotective properties make it valuable in preserving neuronal function in degenerative disorders.