Incidence of Adverse Effects and Misuse of Zolpidem.

STUDY

OBJECTIVES

Zolpidem is a widely prescribed medication for treating insomnia due to its effectiveness as a sedative-hypnotic. This study aimed to estimate the incidence of potential adverse effects associated with the use and misuse of zolpidem.

METHODS

Retrospective cohort study. Participants were selected from consumers who had purchased zolpidem in a commercial pharmacy in Brazil and submitted an interviewed. Descriptive analysis was used to present the results. Pearson's chi-square tests were used to compare adverse reactions to zolpidem with categorical variables, and Student's t-tests were used to compare means. The significance level adopted was 5%.

RESULTS

The study involved 65 participants, with a mean age of 52.7 years, 76.9% of whom were women. Of the total sample, 69.2% used zolpidem for the treatment of long-term insomnia, and 77.4% used it continuously. Among the interviewees, 55.4% reported experiencing adverse reactions, with amnesia, insomnia, and sleepwalking being the most reported. A statistically significant association was found between the occurrence of adverse reactions and continuous use (P value = 0.048), as well as among those with lower mean age (P value = 0.042).

CONCLUSION

Despite being a prescription-controlled medication, zolpidem was used excessively and inappropriately in the studied sample. Given the high prevalence of adverse effects identified in this study, the risk/benefit ratio of pharmacological treatments for insomnia warrants careful evaluation during prescription and dispensing. Incidence of adverse effects and misuse of zolpidem.