Predictors of potential clinically harmful drug-drug interactions at the medical wards in the University of Benin Teaching Hospital, Benin City.

Drug-drug interactions are preventable causes of adverse events. Different factors have been recognized as important predictors of drug-drug interactions but few studies have addressed these predictors in patients admitted into medical wards of a tertiary hospital in Nigeria hence this study. This was a retrospective study conducted using case records of patients admitted into the medical wards between January 1 and December 31, 2020. Patients were selected using a systematic random sampling method. Socio-demographic details including age, gender, number of comorbidities, and number of medications prescribed and diagnosis were collected on days 1, 3, and at discharge. Potential drug-drug interactions were checked using Lexi-interact® software. Analysis was set at p < 0.05. A total of 430 case records were included in this study based on the inclusion criteria. Lexi-interact recorded a prevalence of (217) 50.5% on day 1, (146) 34.0% on day 3, and (290) 67.4% at discharge. A significant association (p < 0.05) was found between the potential drug-drug interactions (DDI) and an increased number of medicines prescribed on all the days of admission. Also, patients without certain infectious or parasitic diseases have reduced odds of developing DDI. There is a need for continuous monitoring of medications from admission to discharge especially in the elderly, those on multiple medications, certain infectious or parasitic diseases, and comorbidities as these impact on DDIs.

Self medication practices and its determinants in health care professionals during the coronavirus disease-2019 pandemic: cross-sectional study.

Background The exposure of health care professionals (HCP) to patients with coronavirus disease-2019 (COVID-19) in the course of performing their professional duties may expose them to contracting the virus. This may likely increase their tendency to self-medicate for prevention or treatment of perceived infection. Aim This study determined the prevalence of COVID-19 related self-medication and its determinants among HCPs in three tertiary hospitals in Southern Nigeria. Method This was a cross-sectional study that enrolled 669 adult HCPs from three tertiary hospitals in three Southern Nigerian States using a non-probability convenience sampling method. A structured self-administered questionnaire was used for data collection. Data entry and analysis were done using IBM SPSS version 22. Results The mean age of the respondents was 35.6 ± 8.7 years. Two hundred and forty-three respondents (36.3%) reported having practiced COVID-19 related self-medication. The commonly used medications were ivermectin, azithromycin, vitamin C, chloroquine and zinc. Factors associated with self-medication were older age (p = < 0.0001), being pharmacist (p = 0.03), higher income (p = < 0.0001), previous COVID-19 testing (p < 0.001). Predictors of self medication were > 44 years (Adjusted Odd Ratio[AOR]:2.77,95% Confidence Interval [CI]: 1.62-4.75, p = < 0.0001), previous COVID-19 testing (AOR = 2.68, 95% CI: 1.82-3.94, p = < 0.0001). Conclusion About one-third of HCPs practiced COVID-19 related self-medication. HCPs that are often assumed to be health literate may not necessarily practice safe health behavior. Regular health education of the HCPs on implications of self-medications is highly recommended. There should also be formulation and effective implementation of policies that regulate purchase of medications.