Fentalogues

Prevalence and blood concentrations of benzodiazepines and opioids in opioid-positive death investigations in Ontario, Canada, from 2017 to 2021

The aim of this study was to investigate the incidence of benzodiazepines in opioid-positive death investigations, including trends in frequency and combination of drugs, as well as demographic data and blood concentrations, where available. Additionally, naloxone concentrations in polysubstance compared to opioid-only cases were analyzed. This was a retrospective study that consisted of all post-mortem toxicology cases in Ontario, Canada, from January 01, 2017, to December 31, 2021, with an opioid finding in any analyzed autopsy specimen. There were 11,033 death investigations identified. The overall rate of benzodiazepine co-involvement was 54.5%. Males accounted for the majority of cases (71%), and the most affected age group was 30- to 39-year-olds. The most frequently detected opioid was fentanyl and the most frequently detected benzodiazepine was etizolam, which was also the most frequently observed opioid/benzodiazepine combination. Findings related to differences in concentrations of opioids when naloxone was also present were mostly non-significant, except for methadone. The rate of benzodiazepine detection with opioids grew faster than opioid detections overall, potentially due to the increasingly toxic drug supply. Detection of novel psychoactive drugs fluctuated more unpredictably than opioids and benzodiazepines associated with clinical use. These findings can help inform policy decisions by public health agencies in exploring harm reduction efforts, for example, education and drug-checking services.

Pill Counting as an Intervention to Enhance Compliance and Reduce Adverse Outcomes with Analgesics Prescribed for Chronic Pain Conditions: A Systematic Review

PURPOSE OF REVIEW

Appropriate use of opioid analgesics is a key concern within the field of pain medicine. Several methods exist to discourage abuse and facilitate effective treatment regimens. Pill counting is often cited as one such method and frequently employed in varying fashions within clinical practice. However, to date, there is no published review of the evidence to support this practice. This was a comprehensive review of the available literature that was conducted with analysis of the efficacy and practical application of pill counting during treatment of chronic pain conditions.

RECENT FINDINGS

There is paucity in data regarding pill count importance in pain management. Pill count is a very important tool to monitor compliance of opioids use which in turn can prevent several complications associated with opioid misuse. Pill counting may be used in conjunction with other abuse deterrents, although increased support for this practice requires standardized methods of pill counting and further analysis of its effectiveness.

Opioid Taper Practices Among Clinicians

Introduction

Opioid dose tapers are used frequently when cross-titrating from one or more opioids to another or when discontinuing therapy. Currently, there is no universally accepted evidence-based standard of care for this procedure which can leave patients at risk for withdrawal symptoms, inadequate pain control, or elevated suicide risk.

Objective

The objective of this study was to examine practices and rationale among clinicians, to determine if there is a difference among respondents in their comfort level, method and rationale for tapering opioids at various morphine milligram equivalents (MME) and to assess the need for the development of a standard of care.

Methods

Data were derived from an electronic survey developed using SurveyMonkey^®. The survey was disseminated via e-mail listservs, social media, and professional organizations. Data were collected regarding profession, confidence tapering opioids at varying total MME, method and rationale for tapering, and pharmacologic management of withdrawal symptoms. Pearson's Chi squared and Fisher's exact tests were used to assess statistical significance of results.

Results

A total of 149 clinicians completed the survey, physicians, NPs, pharmacists, and PAs accounted for 51%, 20%, 19%, and 10% of participants, respectively. Overall, 55% of the respondents self-identified as pain specialists. There were no statistically significant differences in reported comfort level among the different types of providers. Nearly 50% of participants indicated their rationale for tapering or discontinuing opioids was the 2016 CDC guidelines.

Conclusion

Despite that the majority of providers surveyed self-identified as pain specialists, over 50% were not comfortable tapering opioids at doses greater than 120 MME/day. This observation suggests a need for further education and establishment of consensus guidelines on method and rationale for opioid tapering. Provider motivation for tapering was largely influenced by CDC guidelines based on low quality evidence. This strengthens the argument for the creation of guidelines based on high quality evidence.

History of Respiratory Stimulants

The interest in substances that stimulate respiration has waxed and waned throughout the years, intensifying following the introduction of a new class of drugs that causes respiratory depression, and diminishing when antidotes or better drug alternatives are found. Examples include the opioids--deaths increasing during overprescribing, diminishing with wider availability of the opioid receptor antagonist naloxone, increasing again during COVID-19; the barbiturates--until largely supplanted by the benzodiazepines; propofol; and other central nervous system depressants. Unfortunately, two new troubling phenomena force a reconsideration of the status-quo: (1) overdoses due to highly potent opioids such as fentanyl, and even more-potent licit and illicit fentanyl analogs, and (2) overdose due to polysubstance use (the combination of an opioid plus one or more non-opioid drug, such as a benzodiazepine, sedating antidepressant, skeletal muscle relaxant, or various other agents). Since these now represent the majority of cases, new solutions are again needed. An interest in respiratory stimulants has been revived. This interest can be informed by a short review of the history of this interesting class of medications. We present a short history of the trajectory of advances toward more selective and safer respiratory stimulants.