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Free Content Pharmacy customers’ knowledge of side effects of purchased medicines in Mexico

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Abstract:

Summary Objectives  To analyse pharmacy customers’ knowledge and information sources about side effects of medicines they purchased and factors associated with this knowledge. Methods  Cross-sectional survey and semi-structured interviews with customers of 52 randomly selected community pharmacies in Morelos state, Mexico. Customers were included if they were older than 18 years, bought at least one drug either with or without medical prescription, and agreed to take part in the survey. Data were analysed using a multinomial logistic regression model. Results  A total of 1445 customers buying 1946 drugs were surveyed (age 42.9 ± 15.7 years, 56.9% female); 627 (59%) of 1055 customers who purchased prescription-only medicines (POM) did so without a prescription. Of all customers interviewed, 172 (11.9%) affirmed that the bought medicine(s) could cause harm. Only half of those (87 or 6%) were able to identify correctly at least one side effect of the purchased medicines. The majority received the information about side effects from a physician. Customers in semirural areas knew less about side effects (odds ratio: 0.26; 95% CI: 0.11–0.61;  = 0.00); whereas customers buying medicines for chronic pain, hypertension or diabetes knew more (odds ratio 2.63; 95% CI: 1.44–4.80;  = 0.00). Conclusion  The overall majority of customers did not know that medicines they bought could be harmful. This is particularly alarming because they frequently used POM without consulting a physician.

French
Objectifs: 

Analyser la connaissance des clients de la pharmacie et les sources d’information sur les effets secondaires des médicaments qu’ils achètent ainsi que les facteurs associés à ces connaissances. Méthodes: 

Etude transversale et interviews semi-structurées avec les clients de 52 pharmacies d’officine sélectionnées aléatoirement dans l’État de Morelos au Mexique. Les clients ont été inclus s’ils étaient âgés de plus de 18 ans, ont acheté au moins un médicament avec ou sans prescription médicale et ont décidé de prendre part à l’enquête. Les données ont été analysées en utilisant un modèle multinominal de régression logistique. Résultats: 

1445 clients qui ont acheté 1870 médicaments ont été interrogés (âge: 42,9 ± 15,7 ans, 56,9% des femmes), 627 (59%) des 1055 clients qui ont acheté seulement des médicaments sur prescription uniquement l’ont fait sans ordonnance. De tous les clients interrogés, 172 (11,9%) ont affirmé que les médicaments achetés pourraient causer des dommages. Seule la moitié de ceux-ci (87 ou 6%) étaient en mesure d’identifier correctement au moins un effet secondaire des médicaments achetés. La majorité a reçu des informations sur les effets secondaires du médecin. Les clients dans les zones semi-rurales savaient moins sur les effets secondaires (odds ratio: 0,26; IC95%: 0,11-0,61, p = 0,00), alors que les clients achetant des médicaments pour la douleur chronique, l’hypertension ou le diabète en savaient plus (odds ratio 2,63; IC95%: 1,44-4,80, p = 0.00). Conclusion: 

Dans l’État de Morelos au Mexique, la grande majorité des clients ne savent pas que les médicaments qu’ils achètent pourraient causer des dommages. Cela est particulièrement alarmant car ils utilisent fréquemment des médicaments sous prescription uniquement sans consulter un médecin.

Keywords: Mexico; Mexique; Méjico; clientes; clients; connaissances; conocimientos; drugs; efectos secundarios; effets secondaires des médicaments; farmacia; knowledge; medicamentos; pharmacie; pharmacy; side effects

Document Type: Research Article

DOI: https://doi.org/10.1111/j.1365-3156.2008.02186.x

Affiliations: 1:  Center for Health Systems Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico 2:  Department of Pharmacy, Section of Pharmacotherapy and Pharmaceutical Care, University of Groningen, Groningen, The Netherlands

Publication date: 2009-01-01

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