Abstract Title:

N-acetylcysteine augmentation in serotonin reuptake inhibitor refractory obsessive-compulsive disorder.

Abstract Source:

Digestion. 2008;78(4):224-8. Epub 2009 Jan 13. PMID: 16374600

Abstract Author(s):

Daniel L Lafleur, Christopher Pittenger, Ben Kelmendi, Tom Gardner, Suzanne Wasylink, Robert T Malison, Gerard Sanacora, John H Krystal, Vladimir Coric


RATIONALE: Dysfunction of glutamatergic neurotransmission has been implicated in the pathophysiology of obsessive-compulsive disorder (OCD) and recent clinical reports suggest that some glutamate modulating agents are efficacious in the treatment of this disorder. N-acetylcysteine (NAC) is a readily available amino acid compound that is thought to attenuate glutamatergic neurotransmission. NAC may be useful in treating psychiatric disorders involving glutamatergic dysfunction such as OCD. OBJECTIVES: To examine the efficacy of augmentation with NAC in a patient with serotonin reuptake inhibitor (SRI)-refractory OCD. METHODS: A patient with SRI-refractory OCD was treated with an off-label use of NAC augmentation of fluvoxamine over several weeks. RESULTS: NAC augmentation of fluvoxamine resulted in a marked decrease in Yale-Brown Obsessive Compulsive Scale (Y-BBOCS) score and a clinically significant improvement in OCD symptoms. CONCLUSIONS: NAC augmentation was effective in treating SRI-refractory OCD in this single case. Further research is warranted to investigate the use of NAC and other glutamate modulating agents in the treatment of OCD.

Study Type : Human Study

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