Opioid painkiller dependence in a sample of elderly medical inpatients

Adverse Drug Reactions to Opioids: A Study in a National Pharmacovigilance Database

INTRODUCTION

Opioids are commonly used as analgesics; however, like any medicine, they can produce adverse drug reactions (ADRs), including nausea, constipation, dependence, and respiratory depression, that result in harmful and fatal events. Therefore, it is essential to monitor the safety of these drugs in clinical practice.

OBJECTIVE

This study aimed to characterize the safety profile of opioids by conducting a descriptive study based on a spontaneous reporting system (SRS) for ADRs in The Netherlands, focusing on abuse, misuse, medication errors, and differences between sexes.

METHODS

Reports submitted to the Netherlands Pharmacovigilance Centre Lareb from January 2003 to December 2021 with an opioid drug as the suspected/interacting medicine were analyzed. Reporting odds ratios (RORs) for drug-ADR combinations were calculated, analyzed, and corrected for sex and drug utilization (expenditure) for the Dutch population.

RESULTS

A total of 8769 reports were analyzed. Tramadol was the opioid with the most reports during the period (n = 2746), while oxycodone or tramadol had the highest number of reports per year in the study period. The most reported ADRs from opioid use were nausea, followed by dizziness and vomiting, independent of sex, and all of them were more often reported in women. Vomiting associated with tramadol (ROR females/males = 2.17) was significantly higher in women. Buprenorphine was responsible for most ADRs when corrected for expenditure, with high RORs observed with application site hypersensitivity, application site reaction, and application site rash. Fentanyl gave rise to most of the reports of ADRs concerning abuse, misuse, and medication errors.

CONCLUSION

Patients treated with opioids experienced ADRs, primarily nausea, dizziness, and vomiting. For those groups of drugs, no significant differences were found between the sexes, except for the vomiting associated with tramadol. In general, ADRs related to opioids presented higher RORs when uncorrected and corrected for sexes and expenditure than other drugs. There was more disproportionate reporting for ADRs concerning abuse, misuse, and medication errors for opioids than other drugs in the Dutch SRS.

Older Adult Substance Use Treatment First-Time Admissions Between 2008 and 2018

OBJECTIVES

To see whether the percentage of older adults entering substance use treatment for their first time continued to increase and whether there were changes in the use patterns leading to the treatment episode, particularly an increase in illicit drugs.

DESIGN

Public administrative health record study.

SETTING

The Treatment Episode Data Sets publicly available from the Substance Abuse Mental Health Services Administration from 2008 to 2018.

PARTICIPANTS

Young adults age 30-54 years (N = 3,327,903) and older adults age 55 years and older (N = 453,598) with a first-time admission for a publicly funded substance use treatment.

MEASUREMENTS

Demographic and substance use history variables at admission.

RESULTS

The proportion of older adults going for substance use treatment for the first time continued to increase between 2008 and 2018 relative to younger adults, continuing the trend of increasing first-time admission between 1998 and 2008. For the first time, the primary substance at admission for older adults was an illicit substance only, surpassing alcohol only and the combination of alcohol and illicit drug use. In this period, use of opioids, particularly heroin, and methamphetamine increased among older adults entering treatment.

CONCLUSIONS

As our population ages and substance use trends change, healthcare providers that take care of older adults must have skills to prevent, screen for, diagnose, and treat substance use disorders. Given recent trends in substance use and treatment among older adults, substance use treatment programs must adapt to meet the needs of an older population.