The document discusses gabapentin, a drug used to treat epilepsy and nerve pain. It has been shown in animal studies to activate serotonin receptors in the spinal cord and reduce microglial cell activity. In the brain, gabapentin increases levels of GABA, an inhibitory neurotransmitter, which may explain its effectiveness against seizures. While approved to treat some types of epilepsy, it does not help generalized tonic-clonic seizures or absence seizures. Gabapentin also regulates temperature in the hypothalamus and can effectively treat hot flashes associated with menopause.