Considering the Potential Benefits of Over-the-Counter Naloxone

Interventions to increase naloxone access for undergraduate students: A systematic review of the literature

OBJECTIVE

To identify and describe interventions that increase access to naloxone for undergraduate students.

METHODS

A systematic review across 4 databases identified interventions that expand access to naloxone at colleges in the United States from 2015-2023. Three reviewers extracted the following data to create a narrative synthesis and summary of program elements: setting, rationale for intervention, timeline, intervention components, study size, collaboration, sustainability, outcomes and results.

RESULTS

Seven articles met inclusion criteria. Institutions' implemented naloxone interventions due to concerns for student safety and/or student overdose fatalities. Three universities collaborated with their School of Pharmacy for program design and/or dissemination, while two partnered with state-based naloxone distribution programs. Most programs combined opioid-overdose/naloxone training; four distributed naloxone kits. Three studies included pre/post-outcomes, and all reported increases in participant knowledge, attitudes, and/or ability to respond to an overdose.

CONCLUSIONS

Our results indicates an opportunity for wide-scale implementation of undergraduate naloxone programs within US colleges. However, more rigorous implementation research is needed to identify barriers and facilitators to program feasibility, acceptability, and participation.

Associations between partisan media consumption, opioid use disorder stigma, and opioid policy support: An exploration of the media's role in the ongoing opioid epidemic

We report on a preliminary investigation into the relationship between partisan media consumption (PMC) among U.S. adults and their (1) opioid use disorder (OUD) stigma, (2) national OUD policy support (e.g., Medicaid coverage for OUD treatment), (3) local OUD policy support (e.g., safe injection sites), (4) discriminatory OUD policies (e.g., denying housing), and (5) carceral OUD policies (e.g., jailing people who use opioids). We performed a cross-sectional survey of a nationally-representative sample of U.S. adults (n = 6,515) from October 1-November 19, 2021. We surveyed a sample of U.S. adults ages 18 and older drawn from NORC's AmeriSpeak® Panel. AmeriSpeak is a probability-based ongoing panel of over 40,000 households designed to represent the U.S. household population. Cross-sectional analyses revealed significant relationships between PMC and OUD stigma (b = 0.29, p <.001, CI95 = 0.14,0.43), support for national (b = -0.31, p <.01, CI95 = -0.54,-0.09) and local policy responses (b = -0.38, p <.001, CI95 = -0.59,-0.17), and support for discriminatory opioid use disorder policies (b = 0.27, p <.01, CI95 = 0.07,0.45). After controlling for self-reported political affiliation and other potential covariates, Republican-leaning media consumption was significantly associated with increased OUD stigma, less support for national and local harm reduction or rehabilitative policies, and more support for discriminatory policies against individuals experiencing OUD. The opposite associations were observed for Democratic-leaning media consumption. Markers for racism mediated the relationship between PMC and support for carceral policies (indirect path b = -0.41,p <.001, CI95 = -0.50,-0.31). Our results indicate that public health advocates must collaborate with conservative leaders to find bipartisan common ground for targeted communication campaigns.

Scaling up overdose education and naloxone distribution in Kentucky: adoption and reach achieved through a "hub with many spokes" model

BACKGROUND

Scaling up overdose education and naloxone distribution (OEND), an evidence-based practice for reducing opioid overdose mortality, in communities remains a challenge. Novel models and intentional implementation strategies are needed. Drawing upon the EPIS model's phases of Exploration, Preparation, Implementation, and Sustainment (Aarons et al. in Adm Policy Ment Health 38:4-23, 2011), this paper describes the development of the University of Kentucky's unique centralized "Naloxone Hub with Many Spokes" approach to implementing OEND as part of the HEALing Communities Study (HCS-KY).

METHODS

To scale up OEND in eight Kentucky counties, implementation strategies were utilized at two levels: a centralized university-based naloxone dispensing unit ("Naloxone Hub") and adopting organizations ("Many Spokes"). Implementation strategies varied across the EPIS phases, but heavily emphasized implementation facilitation. The Naloxone Hub provided technical assistance, overdose education resources, and no-cost naloxone to partner organizations. Implementation outcomes across the EPIS phases were measured using data from internal study management trackers and naloxone distribution data submitted by partner organizations.

RESULTS

Of 209 organizations identified as potential partners, 84.7% (n = 177) engaged in the Exploration/Preparation phase by participating in an initial meeting with an Implementation Facilitator about the HCS-KY OEND program. Adoption of the HCS-KY OEND program, defined as receipt of at least one shipment of naloxone, was achieved with 69.4% (n = 145) of all organizations contacted. During the Implementation phase, partner organizations distributed 40,822 units of naloxone, with partner organizations distributing a mean of 281.5 units of naloxone (SD = 806.2). The mean number of units distributed per county was 5102.8 (SD = 3653.3; range = 1057 - 11,053) and the mean county level distribution rate was 8396.5 units per 100,000 residents (SD = 8103.1; range = 1709.5-25,296.3). Of the partner organizations that adopted the HCS-KY OEND program, 87.6% (n = 127) attended a sustainability meeting with an Implementation Facilitator and agreed to transition to the state-funded naloxone program.

CONCLUSIONS

These data demonstrate the feasibility of this "Hub with Many Spokes" model for scaling up OEND in communities highly affected by the opioid epidemic. Trial registration ClinicalTrials.gov, NCT04111939. Registered 30 September 2019, https://clinicaltrials.gov/ct2/show/NCT04111939 .

Comparison of a national commercial pharmacy naloxone data source to state and city pharmacy naloxone data sources-Rhode Island, Massachusetts, and New York City, 2013-2019

OBJECTIVE

Accurate naloxone distribution data are critical for planning and prevention purposes, yet sources of naloxone dispensing data vary by location, and completeness of local datasets is unknown. We sought to compare available datasets in Massachusetts, Rhode Island, and New York City (NYC) to a commercially available pharmacy national claims dataset (Symphony Health Solutions).

DATA SOURCES AND STUDY SETTING

We utilized retail pharmacy naloxone dispensing data from NYC (2018-2019), Rhode Island (2013-2019), and Massachusetts (2014-2018), and pharmaceutical claims data from Symphony Health Solutions (2013-2019).

STUDY DESIGN

We conducted a descriptive, retrospective, and secondary analysis comparing naloxone dispensing events (NDEs) captured via Symphony to NDEs captured by local datasets from the three jurisdictions between 2013 and 2019, when data were available from both sources, using descriptive statistics, regressions, and heat maps.

DATA COLLECTION/EXTRACTION METHODS

We defined an NDE as a dispensing event documented by the pharmacy and assumed that each dispensing event represented one naloxone kit (i.e., two doses). We extracted NDEs from local datasets and the Symphony claims dataset. The unit of analysis was the ZIP Code annual quarter.

PRINCIPAL FINDINGS

NDEs captured by Symphony exceeded those in local datasets for each time period and location, except in RI following legislation requiring NDEs to be reported to the PDMP. In regression analysis, absolute differences in NDEs between datasets increased substantially over time, except in RI before the PDMP. Heat maps of NDEs by ZIP code quarter showed important variations reflecting where pharmacies may not be reporting NDEs to Symphony or local datasets.

CONCLUSIONS

Policymakers must be able to monitor the quantity and location of NDEs in order to combat the opioid crisis. In regions where NDEs are not required to be reported to PDMPs, proprietary pharmaceutical claims datasets may be useful alternatives, with a need for local expertise to assess dataset-specific variability.

Probing different paradigms of morphine withdrawal on sleep behavior in male and female C57BL/6J mice

Opioid misuse has dramatically increased over the last few decades resulting in many people suffering from opioid use disorder (OUD). The prevalence of opioid overdose has been driven by the development of new synthetic opioids, increased availability of prescription opioids, and more recently, the COVID-19 pandemic. Coinciding with increases in exposure to opioids, the United States has also observed increases in multiple Narcan (naloxone) administrations as a life-saving measures for respiratory depression, and, thus, consequently, naloxone-precipitated withdrawal. Sleep dysregulation is a main symptom of OUD and opioid withdrawal syndrome, and therefore, should be a key facet of animal models of OUD. Here we examine the effect of precipitated and spontaneous morphine withdrawal on sleep behaviors in C57BL/6 J mice. We find that morphine administration and withdrawal dysregulate sleep, but not equally across morphine exposure paradigms. Furthermore, many environmental triggers promote relapse to drug-seeking/taking behavior, and the stress of disrupted sleep may fall into that category. We find that sleep deprivation dysregulates sleep in mice that had previous opioid withdrawal experience. Our data suggest that the 3-day precipitated withdrawal paradigm has the most profound effects on opioid-induced sleep dysregulation and further validates the construct of this model for opioid dependence and OUD.

Differences in Self-identification of Opioid Overdose Risk and Naloxone Perceptions Between Therapeutic and Nontherapeutic Opioid Populations

OBJECTIVES

Efforts to improve low naloxone uptake to mitigate the current opioid crisis have included coprescribing naloxone with opioid medications and, more recently, expansion through over-the-counter availability, the latter of which necessitates self-identification of overdose risk by consumers. This study sought to understand perceptions of opioid overdose risk and naloxone among distinct opioid populations at elevated risk for overdose.

METHODS

A cross-sectional, online survey was provided to 2 opioid populations in June 2020. First, chronic pain opioid managed (CPOM; n = 190) individuals currently treated with an opioid prescription (either >50 daily morphine milligram equivalents [73.2%] or benzodiazepine co-use [52.6%]), restricted by confounders. Second, individuals with a history of opioid use disorder (OUD; n = 152) previously participating in a national opioid surveillance study of new entrants to substance use treatment centers.

RESULTS

Risk perceptions significantly differed, with 60.0% (CPOM) versus 28.9% (OUD) reporting that they were "not at all concerned about overdosing," and 62.1% (CPOM) versus 19.1% (OUD) perceiving themselves as having "no risk" of overdose. Perceived need for naloxone was lower among CPOM versus OUD patients (48.3% and 71.8%, respectively), whereas 22.6% and 35.0%, respectively, indicated any likelihood of obtaining naloxone in the future.

CONCLUSIONS

Results suggest that a significant proportion of both samples lacked the ability to self-identify their risk of overdose and self-select themselves as needing naloxone, with gaps being more prominent in the CPOM sample. A multi-intervention framework that addresses distinct pathways of behavioral change between unique opioid populations should be considered in conversations surrounding potential transitions to over-the-counter naloxone.

Implementing syringe services programs within the Veterans Health Administration: facility experiences and next steps

Syringe services programs are community-based prevention programs that provide evidence-based, lifesaving services for people who use illicit drugs, including access to syringes, naloxone, fentanyl test strips, infection screening, and linkage to treatment. Historically, syringe services programs did not exist within the Veterans Health Administration owing to many factors, including lack of clarity regarding legality for federal agency-purchased syringes. Three champions at Veterans Affairs facilities in Danville, IL, Orlando, FL, and San Francisco, CA, worked to clarify legal considerations, address barriers, and implement syringe services programs that are integrated in the health care systems. Since 2017, these 3 programs have engaged approximately 400 Veterans and distributed nearly 10,000 syringes, 2500 fentanyl test strips, 50 wound care kits, and 45 safer sex kits. These programs, both led by and in collaboration with clinical pharmacist practitioners, paved the way for nationwide implementation within the Veterans Health Administration. This commentary describes successes, challenges, and proposed next steps to increase Veteran access to syringe services programs, written from the perspective of 3 facility-based champions.

Current and emerging pharmacotherapies for opioid dependence treatments in adults: a comprehensive update

INTRODUCTION

Opioid use disorder (OUD) is characterized by compulsive opioid seeking and taking, intense drug craving, and intake of opioids despite negative consequences. The prevalence of OUDs has now reached an all-time high, in parallel with peak rates of fatal opioid-related overdoses, where 15 million individuals worldwide meet the criteria for OUD. Further, in 2020, 120,000 opioid-related deaths were reported worldwide with over 75,000 of those deaths occurring within the United States.

AREAS COVERED

In this review, we highlight pharmacotherapies utilized in patients with OUDs, including opioid replacement therapies, and opioid antagonists utilized for opioid overdoses and deterrent of opioid use. We also highlight newer treatments, such as those targeting the neuroimmune system, which are potential new directions for research given the recently established role of opioids in activating neuroinflammatory pathways, as well as over the counter remedies, including kratom, that may mitigate withdrawal.

EXPERT OPINION

To effectively treat OUDs, a deeper understanding of the current therapeutics being utilized, their additive effects, and the added involvement of the neuroimmune system are essential. Additionally, a complete understanding of opioid-induced neuronal alterations and therapeutics that target these abnormalities - including the neuroimmune system - is required to develop effective treatments for OUDs.

Implementation of a multidisciplinary inpatient opioid overdose education and naloxone distribution program at a large academic medical center

DISCLAIMER

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

PURPOSE

Opioid overdose-related deaths continue to rise. Despite public health efforts, there is still variability in obtainment of naloxone, a lifesaving antidote. We share our experience in the implementation of a novel opioid overdose education and naloxone distribution (OEND) program at a large academic medical center.

METHODS

Collaborative efforts by pharmacists, pharmacy students, physicians, nurses, and recovery coaches were employed in the design of the program. The service was available Monday through Friday, 9 AM to 6 PM, and primarily carried out by pharmacy students on a rotating basis. Services offered included bedside delivery of naloxone and education prior to the day of discharge. In preparation for their role, the pharmacy students were required to complete a series of trainings and competency assessments.

RESULTS

A total of 40 patients were included in the program evaluation. Of the completed consults 96.7% (n = 30) of patients received both counseling and naloxone delivery. Eighty percent of patients had a history of nonfatal opioid overdose, but only 37.5% had naloxone listed as a home medication. Fifteen percent of patients had patient-directed discharges but still received OEND services.

CONCLUSION

Implementation of an inpatient OEND program by mobilizing trained student pharmacists is feasible and expands naloxone access to patients during transitions of care. A similar model could be considered in the future for the delivery of harm reduction supplies to this patient population.

Patient-reported problems filling buprenorphine prescriptions and motivations for illicit use

Background

While barriers to accessing buprenorphine (BUP) therapy have been well described, little is known about pharmacy-related barriers. The objective of this study was to estimate the prevalence of patient-reported problems filling BUP prescriptions and determine whether these problems were associated with illicit use of BUP. The secondary objectives included identifying motivations for illicit BUP use and the prevalence of naloxone acquisition among patients prescribed BUP.

Methods

Between July 2019 and March 2020, 139 participants receiving treatment for an opioid use disorder (OUD) at two sites within a rurally-located health system, completed an anonymous 33-item survey. A multivariable model was used to assess the association between pharmacy-related problems filling BUP prescriptions and illicit substance use.

Results

More than a third of participants reported having problems filling their BUP prescription (34.1%, n = 47) with the most commonly reported problems being insufficient pharmacy stock of BUP (37.8%, n = 17), pharmacist refusal to dispense BUP (37.8%, n = 17), and insurance problems (34.0%, n = 16). Of those who reported illicit BUP use (41.5%, n = 56), the most common motivations were to avoid/ease withdrawal symptoms (n = 39), prevent/reduce cravings (n = 39), maintain abstinence (n = 30), and treat pain (n = 19). In the multivariable model, participants who reported a pharmacy-related problems were significantly more likely to use illicitly obtained BUP (OR=8.93, 95% CI: 3.12, 25.52, p < 0.0001).

Conclusion

Efforts to improve BUP access have primarily focused on increasing the number of clinicians waivered to prescribe; however, challenges persist with BUP dispensing and coordinated efforts may be needed to systematically reduce pharmacy-related barriers.

If we build it, will they come? Perspectives on pharmacy-based naloxone among family and friends of people who use opioids: a mixed methods study

BACKGROUND

Expanding access to the opioid antagonist naloxone to reduce overdose mortality is a public health priority in the United States. Naloxone standing orders (NSOs) have been established in many states to increase naloxone dispensing at pharmacies, but increased pharmacy access does not ensure optimal uptake among those likely to witness an overdose. In a prior statewide purchase trial, we documented high levels of naloxone access at Massachusetts pharmacies under a statewide NSO. In this study, we characterize barriers to pharmacy-based naloxone uptake among potential opioid overdose "bystanders" (friends or family of people who use opioids) that may be amenable to intervention.

METHODS

Eligible bystanders were Massachusetts residents ≥ 18 years of age, did not use illicit opioids in the past 30 days, and knew someone who currently uses illicit opioids. We used a sequential mixed methods approach, in which a series of semi-structured qualitative interviews (N = 22) were conducted April-July 2018, to inform the development of a subsequent quantitative survey (N = 260), conducted February-July 2020.

RESULTS

Most survey participants (77%) reported ever obtaining naloxone but few (21%) attempted to purchase it at a pharmacy. Qualitative participants revealed that barriers to utilizing the NSO included low perceived risk of overdose, which was rooted in misconceptions regarding the risks of prescription opioid misuse, denial about their loved one's drug use, and drug use stereotypes; inaccurate beliefs about the impact of naloxone on riskier opioid use; and concerns regarding anticipated stigma and confidentiality. Many participants had engaged in mutual support groups, which served as a source of free naloxone for half (50%) of those who had ever obtained naloxone.

CONCLUSIONS

Despite high levels of pharmacy naloxone access in Massachusetts, few bystanders in our study had attempted to obtain naloxone under the NSO. Low perceived risk of overdose, misinformation, stigma, and confidentiality were important barriers to pharmacy naloxone uptake, all of which are amenable to intervention. Support groups provided a setting for addressing stigma and misinformation and provided a discreet and comfortable setting for naloxone access. Where these groups do not exist and for bystanders who do not participate in such groups, pharmacies are well-positioned to fill gaps in naloxone availability.

Where Opioid Overdose Patients Live Far From Treatment: Geospatial Analysis of Underserved Populations in New York State

BACKGROUND

Opioid addiction and overdose have a large burden of disease and mortality in New York State (NYS). The medication naloxone can reverse an overdose, and buprenorphine can treat opioid use disorder. Efforts to increase the accessibility of both medications include a naloxone standing order and a waiver program for prescribing buprenorphine outside a licensed drug treatment program. However, only a slim majority of NYS pharmacies are listed as participating in the naloxone standing order, and less than 7% of prescribers in NYS have a buprenorphine waiver. Therefore, there is a significant opportunity to increase access.

OBJECTIVE

Identifying the geographic regions of NYS that are farthest from resources can help target interventions to improve access to naloxone and buprenorphine. To maximize the efficiency of such efforts, we also sought to determine where these underserved regions overlap with the largest numbers of actual patients who have experienced opioid overdose.

METHODS

We used address data to assess the spatial distribution of naloxone pharmacies and buprenorphine prescribers. Using the home addresses of patients who had an opioid overdose, we identified geographic locations of resource deficits. We report findings at the high spatial granularity of census tracts, with some neighboring census tracts merged to preserve privacy.

RESULTS

We identified several hot spots, where many patients live far from the nearest resource of each type. The highest density of patients in areas far from naloxone pharmacies was found in eastern Broome county. For areas far from buprenorphine prescribers, we identified subregions of Oswego county and Wayne county as having a high number of potentially underserved patients.

CONCLUSIONS

Although NYS is home to thousands of naloxone pharmacies and potential buprenorphine prescribers, access is not uniform. Spatial analysis revealed census tract areas that are far from resources, yet contain the residences of many patients who have experienced opioid overdose. Our findings have implications for public health decision support in NYS. Our methods for privacy can also be applied to other spatial supply-demand problems involving sensitive data.

Limited access to pharmacy-based naloxone in West Virginia: Results from a statewide purchase trial

BACKGROUND

West Virginia (WV) has the highest overdose mortality rate in the United States and expanding naloxone access is crucial for reducing opioid overdose deaths. We conducted a purchase trial to establish an objective measure of naloxone access under WV's naloxone standing order (NSO) program.

METHODS

A stratified random sample of 200 chain and independent retail pharmacies across WV were included. Each pharmacy underwent two purchase attempts-one by a person who used illicit opioids (PWUIO) and one by a potential bystander who did not use illicit opioids but had a relationship with a PWUIO. We used matched-pairs analysis to identify differences in outcomes by purchaser type (PWUIO vs bystander). Chi-square and independent-samples t-tests were used to compare outcomes by pharmacy type (chain vs independent).

RESULTS

Overall, 29% of purchase attempts were successful, with no significant difference between PWUIO and bystanders (p = 0.798). Fewer than half (44%) of successful purchases included verbal counseling, and bystanders were more likely to receive counseling than PWUIO (33% vs 4%, p = 0.018). Common reasons for failed purchases were naloxone not being in stock (41%), requiring a naloxone prescription (35%), and/or requiring formal identification (23%). Chain pharmacies were more likely to sell naloxone than independents (35% vs 19%, p = 0.001).

CONCLUSIONS

We documented limited naloxone access under the WV NSO. These findings indicate that simply establishing an NSO program is insufficient to expand access. Implementation efforts should ensure adequate naloxone stocks, pro-active delivery of NSO-related information and pharmacist training, and avoidance of recordkeeping requirements that may impede access.

Pharmacists' experiences with a statewide naloxone standing order program in Massachusetts: a mixed methods study

OBJECTIVES

In a prior statewide naloxone purchase trial conducted in Massachusetts, we documented a high rate of naloxone dispensing under the state's standing order program. The purpose of this study was to understand the factors that facilitate naloxone access under the Massachusetts naloxone standing order (NSO) program and identify any remaining barriers amenable to intervention.

DESIGN

Mixed methods design involving a pharmacist survey and 3 pharmacist focus groups.

SETTING AND PARTICIPANTS

Focus groups were conducted at 3 separate professional conferences for pharmacists (n = 27). The survey was conducted among Massachusetts pharmacists (n = 339) working at a stratified random sample chain and independent retail pharmacies across Massachusetts. All data were collected between September 2018 and November 2019.

OUTCOME MEASURES

Facilitators and barriers to NSO implementation and naloxone dispensing and pharmacists' attitudes and beliefs regarding naloxone and opioid use.

RESULTS

Most pharmacists described NSO implementation as being straightforward, although differences were reported by pharmacy type in both the survey and focus groups. Facilitators included centralized implementation at chain pharmacies, access to Web-based resources, regularly stocking naloxone, and use of naloxone-specific intake forms. Barriers included patient confidentiality concerns and payment/cost issues. Only 31% of surveyed pharmacists reported always providing naloxone counseling; the most commonly cited barriers were perceived patient discomfort (21%) and time limitations (14%). Confidential space was also more of a concern for independent (vs. chain) pharmacists (18% vs. 6%, P = 0.008). A majority of pharmacists held supportive attitudes toward naloxone, although some reported having moral/ethical concerns about naloxone provision.

CONCLUSION

We documented several facilitators to NSO implementation and naloxone dispensing. Areas for improvement include addressing stigma and misconceptions around opioids and naloxone use. These remain important targets for improving pharmacy-based naloxone dispensing, although our overall positive results suggest Massachusetts' experience with NSO implementation can inform other states' efforts to expand pharmacy-based naloxone access.

Pharmacist furnishing of naloxone in California: A follow-up analysis

BACKGROUND

Increasing naloxone access in communities has been a priority to mitigate the increasing rate of opioid-related overdose deaths.

OBJECTIVES

The aims of this telephone survey were to estimate the availability of naloxone furnishing (provided without a prescription) by community pharmacists in California and examine the changes that occurred between 2018 and 2020.

METHODS

A telephone audit of a random representative sample of 1271 California licensed community pharmacies was conducted from January 22, 2020, to February 24, 2020. The results were compared with those of a survey of 1147 California licensed community pharmacies that was conducted from January 23, 2018, to February 28, 2018. The primary outcomes measured were naloxone availability without a prescription, information on formulations, cost, insurance billing, and stocking status.

RESULTS

There was a statistically significant increase in the furnishing of naloxone, as well as stocking and billing, in California from 2018 to 2020. Although fewer than half of the pharmacies were willing to provide naloxone without a prescription in 2020 (n = 487, 42.4%), this was an 80% increase from 2018 (P < 0.001). Of the pharmacies furnishing naloxone, many (n = 399, 81.9%) had nasal naloxone in stock, a large and statistically significant increase from 2018 when only 50.6% reported having it in stock (P < 0.001). In 2020, 90% of the pharmacies reported correctly that pharmacist-furnished naloxone could be billed to insurance compared with 56.9% in 2018 (P < 0.001). The median cash price of nasal naloxone (pack of 2) at chain pharmacies in 2020 was $131 (interquartile range [IQR] $129-$138) compared with $153 (IQR, $141-$163; P = 0.001) at independent pharmacies.

CONCLUSION

Community pharmacy-based access to naloxone increased in a statistically significant manner in California, although more than half of the pharmacies still do not provide such access. This study demonstrates the need for further efforts to expand community pharmacy-based access to naloxone.