Bemegride is primarily used as a central nervous system stimulant, particularly in the treatment of barbiturate overdose. It acts by antagonizing the depressant effects of barbiturates on the brain, helping to restore normal respiratory and neurological functions. This makes it a critical agent in emergency medical settings where rapid reversal of barbiturate-induced coma or sedation is necessary. Additionally, it has been explored for its potential use in diagnosing and managing certain psychiatric conditions, although this application is less common. Its ability to stimulate the CNS also makes it useful in research settings for studying brain activity and pharmacological responses.