Synonyms: Cyclohexaneacetic acid, 1-[(3-oxo-2-azaspiro[4.5]dec-2-yl)methyl]-, [1-[(3-oxo-2-azaspiro[4.5]dec-2-yl)methyl]cyclohexyl]acetic acid, Gabapentin Imp. D (EP), Gabapentin RC D (USP), [1-[(3-Oxo-2-azaspiro[4.5]dec-2-yl)methyl]cyclohexyl]acetic Acid