Journal
HUMAN PSYCHOPHARMACOLOGY-CLINICAL AND EXPERIMENTAL
Volume 29, Issue 3, Pages 224-229Publisher
WILEY-BLACKWELL
DOI: 10.1002/hup.2391
Keywords
benzodiazepine dependence; pregabalin; cognition
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ObjectiveLong-term benzodiazepine (BDZ) use and dependence affect cognitive functioning adversely and partly irreversibly. Emerging evidence suggests that pregabalin (PGB) might be a safe and efficacious treatment of long-term BDZ use. The aim of the present study was to investigate the changes in several core cognitive functions after successful treatment of long-term BDZ use and dependence with PGB. MethodsFourteen patients with long-term BDZ use (mean duration >15years) underwent neuropsychological assessment with the mini-mental state examination and four tests from the Cambridge Neuropsychological Test Automated Battery (CANTAB) battery before the initiation of PGB treatment and at a two months follow-up after the cessation of BDZs. Patients' CANTAB percentile score distributions were compared with normative CANTAB data. ResultsPatients improved on cognitive measures of global cognitive functioning, time orientation, psychomotor speed, and visuospatial memory and learning with strong effect sizes. By contrast, they failed to improve on measures of attentional flexibility. Despite their significant improvement, patients' scores on most tests remained still at the lower percentiles of CANTAB normative scores. ConclusionsAlthough preliminary, our findings suggest that successful treatment of long-term BDZ use with PGB is associated with a substantial, though only partial, recovery of BDZ-compromised neuropsychological functioning, at least at a 2-month follow-up. Copyright (c) 2014 John Wiley & Sons, Ltd.
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