Gabapentin is an oral prescription medication available as capsules, tablets, and oral solutions. The generic name is gabapentin, and common brand names include Neurontin, Gralise, and Horizant.(Source)
Gabapentin is structurally related to gamma-aminobutyric acid (GABA), a neurotransmitter that helps calm activity in the brain. However, gabapentin does not bind directly to GABA receptors. Instead, it attaches to specific calcium channels in the central nervous system, which helps reduce abnormal electrical activity and decrease certain types of nerve pain.(Source)
Gabapentin is not an opioid and is not a benzodiazepine, but it can still affect mood, coordination, and alertness. Because of these effects, it has become a drug of misuse in some communities, especially when combined with opioids, alcohol, or other sedating medications.(Source)
Gabapentin is only legally available with a prescription from a licensed medical provider. Despite this, it is widely diverted and sold on the street under names like “gabbies” or “johnnies.”(Source)