Non-prescription medicine misuse, abuse and dependence : a cross-sectional survey of the UK general population

Fingleton, Niamh A. and Watson, Margaret C. and Duncan, Eilidh M. and Matheson, Catriona (2016) Non-prescription medicine misuse, abuse and dependence : a cross-sectional survey of the UK general population. Journal of Public Health, 38 (4). pp. 722-730. ISSN 1741-3842 (https://doi.org/10.1093/pubmed/fdv204)

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Abstract

BACKGROUND: Non-prescription medicines (NPMs) can be misused, abused or lead to dependence, but the prevalence of these problems within the UK general population was unknown. The aim of this study was to estimate the prevalence of self-reported misuse, abuse and dependence to NPMs.METHODS: A cross-sectional postal survey was sent to 1000 individuals aged ≥18 randomly drawn from the UK Edited Electoral Register.RESULTS: A response rate of 43.4% was achieved. The lifetime prevalence of NPM misuse was 19.3%. Lifetime prevalence of abuse was 4.1%. Younger age, having a long-standing illness requiring regular NPM use and ever having used illicit drugs or legal highs were predictive of misuse/abuse of NPMs. In terms of dependence, lifetime prevalence was 2% with 0.8% currently dependent and 1.3% dependent in the past. Dependence was reported with analgesics (with and without codeine), sleep aids and nicotine products.CONCLUSION: Given the increasing emphasis on self-care and empowering the public to manage their health with NPMs, the findings highlight the need for improved pharmacovigilance of these medicines to maximize benefits with minimal risk. Healthcare providers need to be aware of the potential for misuse, abuse and dependence, particularly in patients with long-term illness.

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