gab·a·pen·tin 'gab-ə-.pen-tin n an anticonvulsant drug C9H17NO2 structurally related to gamma-aminobutyric acid that is administered orally as adjunctive therapy in the treatment of partial seizures see neurontin
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n.
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gab·a·pen·tin (gab″ə-penґtin) [USP] an anticonvulsant that is a structural analogue of γ-aminobutyric acid (GABA), used as adjunctive therapy in the treatment of partial seizures; administered orally.Medical dictionary. 2011.