Citocoline for Treatment in Fragile X-associated Tremor/Ataxia Syndrome

Ten subjects will receive 1,000mg once daily of citicoline. Each subject will stay on the study drug for 12 months. The outcome measures will be assessed at baseline and then again at the end of month 3, month 6, and month 12. The subjects will continue taking the same study drug at the same dose throughout the entire trial.