The article you requested is

Rapid Resolution of Obsessions After an Infusion of Intravenous Ketamine in a Patient With Treatment-Resistant Obsessive-Compulsive Disorder

J Clin Psychiatry 2011;72(4):567-569 [letter]

Letter to the Editor

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To the Editor: Obsessive-compulsive disorder (OCD) is a leading cause of illness-related disability. Identifying more effective treatments with faster onset of action would be a major advance. Medications thought to modulate the glutamate system are promising new agents; for example, open trials of riluzole, memantine, and minocycline as augmentation to serotonin reuptake inhibitors (SRIs) suggest that up to half of OCD patients may experience reductions in symptoms.