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IN THIS ISSUE:
July 2007

New Studies on GAD
Pregabalin and duloxetine (Cymbalta) may be efficacious for adults and venlafaxine (Effexor) for children with generalized anxiety disorder.

Methadone Prolongs QTc Interval
Long-term, high-dose methadone treatment is linked to prolonged QTc intervals.

In Brief
Augmentation for Clozapine Nonresponders; Quetiapine Ineffective for Psychosis/Agitation in Dementia

As Depression Becomes More Treatment-Resistant…
For patients who do not respond to initial antidepressant therapy, augmentation, or switch strategies, further augmentation or switching with different agents can bring about remission—but at a lower rate.

Effects of Antidepressants on 2D6 Enzymes
Duloxetine (Cymbalta) has substantial and escitalopram (Lexapro) and sertraline (Zoloft and others) more modest inhibiting effects on CYP 2D6.

As Depression Becomes More Treatment-Resistant…

July 2007

Abundant evidence suggests that only about 30% of patients with major depressive disorder can expect to achieve remission—a virtual cessation of symptoms—from their first treatment. In an attempt to address "real world" issues in the treatment of treatment-resistant depression, the National…

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