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Br J Clin Pharmacol. 2002 Dec;54(6):665-70.

Adverse drug reactions and off-label drug use in paediatric outpatients.

Author information

1
Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de Pharmacovigilance, de Pharmacoépidémiologie et dInformations sur le médicament, Faculté de Médecine.

Abstract

AIMS:

To investigate the potential relationship between off-label drug use and increased risk of adverse drug reactions in paediatric outpatients.

METHODS:

A prospective pharmacovigilance survey of drug prescribing in office based paediatricians was carried out in Haute-Garonne County (south west of France).

RESULTS:

The study involved a sample of 1419 children under 16 years old. Forty-two percent of patients were exposed to at least one off-label prescription. The incidence of adverse drug reactions was 1.41% (95% CI 0.79, 2.11). Off-label drug use was significantly associated with adverse drug reactions (relative risk 3.44; 95% CI 1.26, 9.38), particularly when it was due to an indication different than that defined in the Summary Product Characteristics (relative risk 4.42; 95% CI 1.60, 12.25).

CONCLUSIONS:

Our data suggest an increasing risk of adverse drug reactions related to off-label drug use. This risk would be acceptable if further studies prove the potential benefit of such a drug use.

[Indexed for MEDLINE]
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