Potential drug-drug interactions in paediatric outpatient prescriptions in Nigeria and implications for the future
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Published on: June 21, 2018
Kazeem Adeola Oshikoya1, Ibrahim Adekunle Oreagba2, Brian Godman3,4
1a Pharmacology Department , Lagos State University College of Medicine , Ikeja , Nigeria.
Insights
Potential drug-drug interactions (DDIs) were common in Nigerian pediatric outpatients, affecting 16.9% of patients. However, these drug-drug interactions were linked to few adverse drug events (ADEs).
Area of Science:
- Pharmacovigilance
- Clinical Pharmacy
- Pediatric Pharmacology
Background:
- Limited data exists on drug-drug interactions (DDIs) and adverse drug events (ADEs) in Nigerian pediatric populations.
- Understanding DDI prevalence is crucial for patient safety in pediatric care.
Purpose of the Study:
- To determine the incidence of potential DDIs among pediatric outpatients in Nigeria.
- To assess the association between potential DDIs and reported ADEs in this demographic.
Main Methods:
- A prospective clinical audit was conducted over three months in four Nigerian general hospitals.
- Data on potential DDIs and documented ADEs were extracted from patient case files of 1233 eligible pediatric outpatients.
Main Results:
- 16.9% of patients (208/1233) had prescriptions with at least one potential DDI, predominantly involving antimalarial combination therapies.
- Commonly implicated drugs included promethazine, artemether/lumefantrine, and ciprofloxacin.
- While potential DDIs were frequent, only 15 patients reported ADEs, and just 48 attended follow-up clinics.
Conclusions:
- Potential DDIs are prevalent in Nigerian pediatric outpatients.
- Despite the high exposure to potential DDIs, a low number of actual adverse drug events were reported.
Background:
Information regarding the incidence of drug-drug interactions (DDIs) and adverse drug events (ADEs) among paediatric patients in Nigeria is limited.
Methods:
Prospective clinical audit among paediatric outpatients in four general hospitals in Nigeria over a 3-month period. Details of ADEs documented in case files was extracted.
Results:
Among 1233 eligible patients, 208 (16.9%) received prescriptions with at least one potential DDI. Seven drug classes were implicated with antimalarial combination therapies predominating. Exposure mostly to a single potential DDI, commonly involved promethazine, artemether/lumefantrine, ciprofloxacin and artemether/lumefantrine. Exposure mostly to major and serious, and moderate and clinically significant, potential DDIs. Overall exposure similar across all age groups and across genders. A significant association was seen between severity of potential DDIs and age. Only 48 (23.1%) of these patients presented at follow-up clinics with only 15 reporting ADEs.
Conclusion:
There was exposure to potential DDIs in this population. However, potential DDIs were associated with only a few reported ADEs.
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