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  • Title: Managing depressive and anxiety disorders with escitalopram.
    Author: Thase ME.
    Journal: Expert Opin Pharmacother; 2006 Mar; 7(4):429-40. PubMed ID: 16503815.
    Abstract:
    This article reviews escitalopram, the S-stereoisomer of the racemic compound citalopram, and a highly selective and potent member of the selective serotonin re-uptake inhibitor class of antidepressants. Escitalopram has a straightforward pharmacokinetic profile, little effect on hepatic metabolism, and is relatively safe in overdose. Similar to other members of the selective serotonin re-uptake inhibitor class, escitalopram (10-20 mg/day) is a well-tolerated and effective treatment of major depressive disorder. Although relatively few head-to-head comparative studies with other antidepressants have been published, pooled analyses of studies using citalopram as the active comparator suggest a modest advantage for the stereoisomer. This advantage, which is more apparent among patients with greater symptom levels, may be attributable to a greater than predicted potency compared with citalopram, presumably as a result of the greater effect of escitalopram at the allosteric binding site of the serotonin transporter. Results of two published studies versus venlafaxine also suggest better tolerability in the context of comparable efficacy. Escitalopram is also approved for the treatment of generalised anxiety disorder (in the US) and social anxiety disorder and panic disorder (in the EU). Pharmacoeconomic models suggest that the greater drug acquisition cost of this patent-protected compound may be offset by greater efficacy (relative to generic citalopram) and tolerability (compared with extended release venlafaxine).
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