RESUMO
Background: Medications that are improperly disposed contribute to environmental contamination with proven negative impacts on biological ecosystems. The role of the pharmacist in providing medication disposal advice is paramount to reducing this effect. Objective: To investigate pharmacists' knowledge, perception and practices regarding medication disposal in Trinidad. Methods: A cross-sectional study was conducted electronically over 4 months amongst public and private sector pharmacists using a self-administered questionnaire. The questionnaire comprised 32 questions and four sections - demographics, knowledge, perception and practice regarding medication disposal. Ethical approval was obtained from the Ethics Committee, the University of the West Indies, the four Regional Health Authorities in Trinidad, and the Ministry of Health, Government of the Republic of Trinidad and Tobago. Data were analysed using IBM SPSS Statistics Version 24. Chi-squared tests sought to detect significant associations between demographics and responses. Results: Of 400 pharmacists, (response rate 52.0%) most were female (63.0%), had <5 years experience (47.1%), and worked in a community pharmacy (68.0%). Most (79.3%) believed that improperly disposed medications can negatively affect the environment but only 45.2% thought that improperly disposed antibiotics could lead to antimicrobial resistance. Most returned expired drugs to the pharmaceutical distributor (80.8%), or disposed of through the Drug Inspectorate (63.9%), but 32.3% still disposed of expired medicines in the workplace garbage, with community pharmacies being more likely to carry out this practice (p = 0.011). Most pharmacists (36.5%) do not counsel patients on medication disposal and 64.4% would not recommend flushing expired drugs down the toilet. Only 20.7% would recommend flushing narcotics, which is considered the best practice to prevent accidental poisoning. Conclusions: Continuing education for pharmacists is needed to increase awareness of the best practices of medication disposal, along with an awareness campaign on medication disposal.
RESUMO
OBJECTIVES: Unused/expired medicines that are improperly disposed of can enter soil and water supply and have negative implications for public health. This study aimed to assess patients' knowledge and understanding of medication disposal practices and their willingness to participate in a medication takeback programme. METHODS: A self-administered questionnaire comprising of 26 questions based on demographics, knowledge, beliefs, practices and concerns was utilized in this study. The study was conducted over 12 weeks at outpatient pharmacy sites located in the four Regional Health Authorities in Trinidad. Statistical Package for the Social Sciences (SPSS) version 24 was used for statistical analysis. KEY FINDINGS: A total of 547 persons completed the questionnaire. Knowledge of the dangers of improper medication disposal was highest in those aged 18-25 years (P = 0.007) and having secondary/tertiary level education (P = 0.002). Disposal of unused/expired medication via household thrash (86.1%) was the most commonly encountered practice. Only 14.1% (n = 77) of respondents asked the pharmacist for advice on best disposal practice, although 47.3% (n = 259) thought that the pharmacist should be the main source of advice for information on medication disposal practices. There was a willingness to participate in a medicine takeback programme from 82% (n = 449) of the respondents, and the majority (67.5%) (n = 303) would prefer it if medication takeback programmes were implemented at private community pharmacies. CONCLUSIONS: Patients in Trinidad utilized household garbage as their main disposal method. There is a need to implement a medication takeback programme and educate the public on proper medication disposal.
