Gabapentin is an anticonvulsant and analgesic medication that modulates neuronal calcium channel activity, particularly by binding to the α2δ subunit of voltage-gated calcium channels, which reduces neuronal excitability and neurotransmitter release. In Visual Snow Syndrome, it may help mitigate abnormal cortical hyperexcitability and sensory processing by dampening aberrant neural signaling in visual and sensory cortical regions. Its potential efficacy stems from its ability to stabilize neuronal membranes and potentially reduce the hyperactive neurological dysfunction associated with the syndrome.