Used primarily in neuroscience research to study the role of NMDA receptors in brain function and neurological disorders. Acts as a potent antagonist of the NMDA receptor, making it a valuable tool for modeling conditions like schizophrenia, epilepsy, and neurodegenerative diseases in animals. Also used to investigate mechanisms of excitotoxicity and neuronal damage following stroke or trauma. Due to its strong psychotomimetic effects, it is not used clinically but remains important in preclinical studies exploring cognitive function, memory, and potential neuroprotective agents.