Quetiapine is Effective Across a Spectrum of Illnesses

July 4, 2010 · Posted in Current Treatments · 1 Comment 

The atypical antipsychotic quetiapine (Seroquel or Seroquel XR) has a range of efficacy in a number of illnesses, depending on the size of the dose given.  Read about some of its uses below, including as an adjunct to antidepressants in unipolar depression; as a treatment for generalized anxiety disorder (GAD) and post-traumatic stress disorder (PTSD); and, at higher doses, as a treatment for mania and depression.  Some of its potential mechanisms of action are described as well.

Chart: Relationship of Receptor Affinity to Dose in Seroquel

Quetiapine's actions on various receptors in the brain (bottom axis) are responsible for its effects in different illnesses

Quetiapine as an adjunct to antidepressants in unipolar depression

Posters at the American Psychiatric Association meeting in San Francisco in May 2009 showed new data from a series of studies of quetiapine in unipolar depression that showed the drug in monotherapy (at 150mg & 300mg) was significantly more effective than placebo. Studies were also positive when quetiapine was used as an adjunct compared with placebo for patients showing inadequate or incomplete responses to antidepressants such as selective serotonin reuptake inhibitors (SSRIs).
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