• Goran Palčevski, Nataša Skočibušić, and Vera Vlahović-Palčevski.
• Department of Paediatrics, University Hospital Rijeka, Rijeka, Croatia.
• Eur. J. Clin. Pharmacol. 2012 Jul 1;68(7):1073-7.

PurposeThe aim of this study was to determine the prevalence and pattern of unlicensed and off-label drugs prescribed to hospitalized children at the Department of Paediatrics, University Hospital Rijeka, Croatia.MethodsA prospective cross-sectional study was performed on 1 day each month during a 12 month period and included all hospitalized children and adolescents.ResultsA total of 1,643 prescriptions for 198 different drugs were prescribed to 531 out of 691 (77%) hospitalized patients. Forty-six percent of the different drugs were prescribed in an unlicensed or off-label manner. Of all drug prescriptions, 25% were either unlicensed or off-label. Forty-eight percent of the patients received either an unlicensed or off-label drug. The most frequently prescribed off-label drugs were proton pump inhibitors.ConclusionUnlicensed and off-label drug use is common. It is not illegal and may be clinically appropriate but is associated with a number of clinical, safety, and ethical issues. Regulatory authorities should use existing clinical evidence on the use of off-label and unlicensed drugs in decision making. Marketing authorization holders and national regulatory authorities should monitor for any safety concerns associated with unlicensed and off-label drug use and take appropriate measures as well as identify research priorities and mandate clinical studies to resolve important questions.

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