• Kennedy Obebi Cliff-Eribo, Helen Sammons, Kristina Star, Ralph EdwardsIIb Uppsala Monitoring Centre , WHO Collaborating Centre for International Drug Monitoring , Uppsala , Sweden., Adeline Osakwe, and Imti Choonara.
• a The University of Nottingham , Academic Division of Child Health, Derbyshire Children's Hospital , UK.
• Paediatr Int Child Health. 2016 Nov 1; 36 (4): 300-304.

BackgroundAdverse drug reactions (ADRs) in children recorded in national pharmacovigilance databases in high-income countries have been analysed. Nigeria has a population of 31 million children and became a member of the WHO Programme for International Drug Monitoring in 2004 since when it has been submitting reports of suspected ADRs to the WHO Global Individual Case Safety Report database, VigiBase.ObjectiveTo gain information on reported ADRs in Nigerian children aged 0-17 years in VigiBase from 2005 to 2012.MethodsThe data were analysed for annual reports, age and sex of patients, type of reporters, suspected drugs and adverse reactions. The most commonly reported ADRs and suspected drugs were ranked, and drugs associated with the fatalities were evaluated.ResultsA total of 297 reports of 473 ADRs in 297 children were received from doctors, pharmacists, other health-care professionals and consumers during the period. ADRs were most frequently reported for anti-retrovirals (74, 24%), antibiotics (71, 23%) and anti-malarials (60, 20%). The most frequently reported ADRs were rash (15.2%), fever (10.3%) and pruritus (6.8%). Anti-infective agents were responsible for more than half of the reports. Twenty-one children (7%) died, eight from acute renal failure. Seven of the cases of acute renal failure were associated with contaminated paracetamol/diphenhydramine hydrochloride and herbal medicines used for teething problems. In the majority of cases, the products were contaminated with diethylene glycol. There were 14 cases of Stevens-Johnson syndrome, three of which were fatal.ConclusionAnti-infective agents (antibiotics, anti-malarials and anti-retrovirals) were associated with a majority of the ADRs. Stevens-Johnson syndrome was the most frequent severe ADR. Some of the fatalities were associated with sub-standard and herbal medications.

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