A comparative analysis of pharmacists' perspectives on codeine use and misuse - a three country survey

Community pharmacists' experience of gabapentin misuse and abuse: A quantitative study from Jordan

Gabapentin is an anticonvulsant that has an abuse potential. The aim of this study was to investigate the misuse and abuse of gabapentin in Jordan from the perspective of community pharmacists. A cross-sectional survey using a self-reported structured questionnaire was used with a convenience sample of pharmacists employed by various independent and chain community pharmacies. An online technique was used in this study using Google forms. A total of 215 questionnaires were completed, with 200 respondents (93%) reporting awareness of cases of gabapentin abuse in their pharmacies. Less than half of the respondents (n = 94; 43.7%) indicated that gabapentin requests were not accompanied by prescriptions. Almost two-thirds of respondents (63.6%) noticed an increased pattern of gabapentin abuse/misuse during the last 6 months. The study underscores the need for regulatory efforts and pharmacovigilance to manage potential gabapentin abuse, along with pharmacist and patient education at the community pharmacy, regarding potential abuse of gabapentin.

Development and validation of a brief screening tool for over-the-counter codeine dependence

BACKGROUND

Low-dose codeine is sold without a prescription in countries like the UK, Ireland, and South Africa. Due to misuse concerns, exploring pharmacy screening tools to identify those at risk and needing additional support is vital.

OBJECTIVES

The study aims to develop and validate a brief screening tool that assesses the risk of codeine dependence with language appropriate for routine use in community pharmacies.

METHOD

Scale development and validation occurred over two studies. In Study 1, scale item generation was based on structured analyses of psychosocial and pharmacy variables from frequent over-the-counter codeine consumers (N = 795). CFA was used to assess the cohesiveness of the resultant four-item Codeine Dependence Scale (CDS). ROC analyses were used to assess the performance of the CDS against risk cases identified by the Severity of Dependence Scale; identifying an optimal cut-off value of ≥2 as representing individuals at risk of codeine dependence. In Study 2, this CDS threshold was assessed against positive DSM-5 Opioid Use Disorder (OUD) cases related to codeine use assessed using the AUDADIS-IV.

RESULTS

With a cut-off score of ≥2, the CDS has sensitivity and specificity of 76% and 48%, respectively, against a DSM-5 codeine-related OUD diagnosis using the AUDADIS-IV. For identification of any codeine-related OUD (as measured by the AUDADIS-IV) 15 months after baseline, the CDS achieved an overall correct classification rate of 52%; 72% for positive cases.

CONCLUSIONS

The CDS exhibits reasonable cross-sectional and longitudinal sensitivity but low specificity, partly due to its brevity. However, the inclusive nature of the CDS is not a negative for application as a screening tool in a pharmacy setting as individual CDS items represent critical conversation points with a pharmacist, regardless of the screening outcome. The non-confronting nature of CDS items make the scale a viable option for pharmacy-based SBI in countries where codeine remains OTC.

A scoping review on the availability and utilization of essential opioid analgesics in Sub-Saharan Africa

BACKGROUND

Management of acute, post-operative, and chronic pain requires access to and availability of opioids. While often oversupplied in high-income countries, significant shortages exist in low- and middle-income countries. We conducted a scoping review on availability and usage of opioids in Sub-Saharan Africa (SSA).

METHODS

The five-stage approach of Arksey and O'Malley (2005) was used. MEDLINE via PubMed, EMBASE, and SCOPUS were search and results categorized into themes: 1) Local/regional availability and supply, 2) Consumption patterns, 3) Legislation and policy, 4) Costs and financing, 5) Knowledge and cultural beliefs, and 6) Education and training.

RESULTS

6923 studies were identified from which 69 (1%) met inclusion criteria. Five key findings were: 1) Significant shortages exist, especially in rural areas, 2) Non-opioid analgesics commonly used as first-line acute pain management, 3) Barriers to market entry and bureaucratic processes prevent local production, 4) Significant knowledge gaps/myths exist amongst healthcare practitioners on opioid use, and 5) Continuous education and short courses will be critical.

CONCLUSIONS

Major challenges significantly limit availability and utilization of essential opioids in SSA. Reforms needed to upscale training and education, increase uptake by professionals, and increase market entry.

Physician Perspectives on Codeine Accessibility, Patterns of Use, Misuse, and Dependence in Saudi Arabia

In Saudi Arabia, there are concerning rates of non-compliance with pharmaceutical regulations prohibiting the pharmacy dispensing of prescription-only medications without a physician prescription. This is the first study in the Middle East which examines physicians’ perceptions regarding misuse of codeine, listed as a narcotic, controlled, and prescription-only drug. The CODEMISUSED survey was adapted to the Saudi Arabian context and pilot tested, prior to cross-sectional administration to physicians in Riyadh, Jeddah, Abha, and Jazan (n = 105). Descriptive statistics (frequencies and percentage) present physician level of agreement, neutrality, and disagreement with statements regarding codeine prescribing, patient awareness and use, online and community pharmacy availability, and dependence. The study indicates concern by physicians regarding patient intentional use of codeine to enhance mood, misuse patterns, lack of awareness around habit-forming use and iatrogenic dependence, and sourcing via illegal dispensing. It underscores the imperatives to address pharmacy compliance with pharmaceutical regulatory controls, implement enhanced pharmacovigilance, and improve awareness around safe use.

Beyond the 'purple drank': Study of promethazine abuse according to the European Medicines Agency adverse drug reaction reports

BACKGROUND

Promethazine is a medicinal product, available on its own or in combination with other ingredients including dextromethorphan, paracetamol and/or expectorants. Anecdotal reports have however indicated that promethazine may have a misuse potential, especially in adolescents.

OBJECTIVE

We here aimed at studying how this phenomenon has been reported to the European Monitoring Agency Adverse Drug Reactions database.

METHODS

After a formal request to the European Monitoring Agency, the promethazine-specific dataset has been studied, performing a descriptive analysis of misuse/abuse/dependence-related adverse drug reaction reports. The study was approved by the University of Hertfordshire (LMS/PGR/UH/03234).

RESULTS

The analysis of promethazine data showed increasing levels of misuse/abuse/ dependence issues over time (2003-2019). Out of a total number of 1543 cases of adverse drug reactions, the abuse/misuse/dependence-related cases reported were 557, with 'drug abuse' (300/557: 53.8%) and 'intentional product misuse' (117/557: 21.0%). being the most represented adverse drug reactions. A high number of fatalities were described (310/557: 55.6%), mostly recorded as 'drug toxicity/drug abuse' cases, with opiates/opioids having been the most commonly reported concomitant drugs used.

CONCLUSION

Anecdotal promethazine misuse/abuse reports have been confirmed by European Monitoring Agency data. Promethazine misuse/abuse appears to be an alarming issue, being associated with drug-related fatalities. Thus, healthcare professionals should be warned about a possible misuse of promethazine and be vigilant, as in some countries medicinal products containing promethazine can be purchased over the counter. Since promethazine is often available in association with opioids, its abuse may be considered a public health issue, with huge implications for clinical practice.

The impact of guidance on the supply of codeine-containing products on their use in intentional drug overdose

Background

Concerns about the misuse of codeine led to the introduction of guidance restricting the supply of over-the-counter (OTC) codeine-containing products in Ireland in 2010. The aim of this study was to examine the impact of this guidance on the national rate of hospital-presenting self-harm involving codeine-related intentional drug overdose (IDO).

Methods

Presentations involving IDO to Irish general hospitals between 1 January 2007 and 31 December 2013, as recorded by the National Self-Harm Registry Ireland, were analyzed. Event-based rates per 100 000 were calculated using national population data. Poisson regression models were used to assess rate changes between pre- and post-guidance periods and to calculate excess presentations.

Results

Between January 2007 and December 2013, a total of 57 759 IDOs were recorded, with 4789 (8.3%) involving a codeine-containing product. The rate of codeine-related IDOs was 20% lower in the period following implementation of the guidance (incidence rate ratio: 0.80; 95% CI: 0.75 to 0.85), representing a total of 509 (95% CI: −624, −387) fewer codeine-related IDOs in that period. Reductions were observed across all ages and were more pronounced for females (0.76, 0.71 to 0.82) than males (0.87, 0.79 to 0.97). The rate of IDOs involving other drugs decreased by 3% in the same period (0.97, 0.95 to 0.98).

Conclusion

Our findings indicate that the rate of codeine-related IDOs was significantly lower in the period following the implementation of the guidance. There is a large body of evidence supporting the restriction of potentially harmful medication as an effective strategy in suicide prevention.

Alterations in the biochemical indices in Wistar rats exposed to an overdose of codeine and dextromethorphan

OBJECTIVE

This study investigates the impact of repeated oral exposure to two cough syrups containing codeine and dextromethorphan (DXM) on male Wistar rats.

METHODS

We divided 35 rats into seven groups of five rats each. Group A was given 0.5 mL of distilled water, Groups B, C, and D were given 0.1, 0.2 and 0.4 mL/kg body weight (b. w) of cough syrup containing codeine (CSC), respectively, and Groups E, F, and G were administered 0.1, 0.2 and 0.4 mL/kg b. w of cough syrup containing DXM, respectively. The treatment was continued for 28 days. The rats were euthanised under mild diethyl ether anaesthesia. The kidney, liver, and blood of the rats were examined for further analyses.

RESULTS

Significant (p < 0.05) alterations were observed in the liver function tests: ALT, AST, ALP, albumin, and total bilirubin. All doses of CSC and DXM significantly increased the ALT levels (p < 0.05). Furthermore, similar significant alterations were observed for the kidney function parameters such as creatinine, urea, and uric acid (p < 0.05). All doses of DXM caused significant elevations in the levels of urea (p < 0.05). The histopathological evaluations also showed slight changes in the architecture of the liver, kidney, and brain tissues.

CONCLUSION

The findings of this study suggest that overdose of these cough syrups may predispose the consumer to hepatic and renal injuries.

Prevalence and correlates of prescription drug diversion and misuse among people living with HIV in the eThekwini district, KwaZulu-Natal, South Africa

BACKGROUND

Prescription drug diversion, and misuse has increased over the past decade and is notably in high-income-countries and significantly contributes to the opioid epidemic. People living with HIV (PLWH) are particularly vulnerable to prescription drug diversion, and misuse as most experience chronic pain, mental health problems and HIV-related illnesses. The researchers investigated the prevalence and correlates of prescription drug diversion, and misuse among PLWH in the eThekwini district, KwaZulu-Natal.

METHODS

A cross-sectional study was conducted among 392 PLWH, conveniently recruited from the public healthcare facilities located in rural, semi-urban and urban areas of the eThekwini district. Participants answered questions about their background, prescription medications, substance use, and prescription drug diversion, and misuse. Descriptive analysis was performed to estimate the prevalence of prescription drug diversion, and misuse. Multivariable logistic regression was used to identify predictors of prescription drug diversion, and misuse.

FINDINGS

Overall, 13% of the participants reported lifetime prescription drug diversion. The most common type of diversion was using prescription medication not prescribed by a healthcare provider (11%), followed by sharing of prescription medication (9%) and buying prescription medication without a medical script (5%). Twenty-three per cent of the participants reported prescription drug misuse in the past 90 days, with using prescription medication without a healthcare providers' guidance (9%) and not following the scheduled time periods (8%) being the most common reported types of misuse. Self-medicating was identified as a risk factor for prescription drug misuse. There was no association between ART adherence and prescription drug diversion, and misuse.

CONCLUSION

The study findings contribute to improving the limited data available on prescription drug diversion, and misuse among PLWH in South Africa. The prevalence underscores a need for urgent interventions when prescribing medications with potential risks. Addressing the risk of self-medicating is imperative for HIV care outcomes and to avert death.

Over-The-Counter Codeine: Can Community Pharmacy Staff Nudge Customers into Its Safe and Appropriate Use?

The misuse of opioids, including codeine which is sold over-the-counter (OTC) in United Kingdom (UK) community pharmacies, is a growing public health concern. An educational Patient Safety Card was developed and piloted to see if it nudged customers into the safe and appropriate use of OTC codeine. Exploratory analysis was conducted by (i) recording quantitative interactions for people requesting OTC codeine in community pharmacies; and (ii) a web-based pharmacy staff survey. Twenty-four pharmacies submitted data on 3993 interactions using the Patient Safety Card. Staff found the majority of interactions (91.3%) to be very or quite easy. Following an interaction using the card, customers known to pharmacy staff as frequent purchasers of OTC codeine were more likely not to purchase a pain relief medicine compared to customers not known to staff (5.5% of known customers did not purchase any pain relief product versus 1.1% for unknown customers (χ² = 41.73, df = 1, p < 0.001)). These results support both the use of a visual educational intervention to encourage appropriate use of OTC codeine in community pharmacy and the principles behind better self-care.

Experiences of over-the-counter codeine misusers and accounts of recovery: A qualitative study in Tasmania, Australia

INTRODUCTION AND AIMS

There is international concern about misuse of over-the-counter (OTC) codeine, yet few studies have reported the perspectives of misusers themselves. This study explored the experience of OTC codeine misuse and recovery in Tasmania, Australia.

DESIGN AND METHODS

Semi-structured telephone interviews were conducted with 15 self-identified long-term users of OTC codeine. The interview guide prompted responses about reasons for codeine use, positive and negative impacts, recovery, identity and codeine accessibility. Transcripts were analysed abductively using qualitative content analysis. Categories that emerged from misuser accounts were aligned to three broad temporal phases: (i) transition to misuse; (ii) growing awareness; and (iii) towards recovery.

RESULTS

Salient features of the misuse experience included: initial use for the self-treatment of physical pain; ongoing use to self-medicate physical pain, stress or mental health conditions; a perception of safety of OTC codeine; an insidious transition from use to misuse; growing awareness of a problem over time; support provided by family, friends and the internet; recovery through self-change; and recognition that recovery is an ongoing process.

DISCUSSION AND CONCLUSIONS

Knowledge and understanding of the experience of OTC codeine misuse and recovery is critical to inform and tailor approaches to prevention and intervention. The findings suggest that strategies to improve the management of pain, stress and mental health, raise self-awareness of problematic use and potential for self-change, and increase social and web-based supports, should be considered when designing health policy initiatives that aim to reduce misuse.

Utilization of over-the-counter analgesics in two private medical insurance schemes in South Africa

Introduction

In South Africa there is an easy access to over-the-counter (OTC) medicines and expenditure is high. Certain OTC products are available to the public in general stores, while others may only be available at pharmacies. It is also common for OTC medicines to be prescribed by a doctor for treatment of minor illnesses. Individuals with medical insurance usually have cover for these products, but typically only to a limited extent.

Aim

To investigate the utilization patterns in two medical insurance schemes of OTC analgesic products in the Anatomical Therapeutic Chemical (ATC) category N02BE51 which includes medicines containing paracetamol and varying combinations of codeine, caffeine and antihistamines.

Methodology

Data were obtained for two benefit plans, one with generous, high benefits (HI), the other with lower benefits (LO). Data covered utilization of OTC medicines in the N02BE51 group, indicating whether the medicines were purchased at a pharmacy or dispensed by a doctor. Doctors were further categorised as contracted/network or non-network providers. Product costs and volumes were analysed according to access directly by the beneficiary, recommendation by a pharmacist, or prescription from a doctor.

Results

Compared to doctors, pharmacists issued more-expensive products. Average costs were higher in the HI plan compared to the LO plan. Pharmacists showed a preference for dispensing larger and more expensive pack sizes. Doctors showed better cost containment: the average cost of products in HI was twice that of LO. Doctors dispensing directly to patients issued smaller pack sizes and lower-priced products. Contracted network doctors did not appear to impact on costs.

Conclusion

Among the privately-insured individuals studied, the avaiIability, cost and formulation of N02BE51 OTC products appeared to be poorly regulated, whether by the consumer, pharmacist, medical insurance scheme or legislation. Doctors demonstrate better cost containment by prescribing less costly, smaller pack-size alternatives compared to pharmacists.

Point-of-care diagnostics: needs of African health care workers and their role combating global antimicrobial resistance

Point-of-care tests (POCTs) offer the opportunity for increased diagnostic capacity in resource-limited settings, where there is lack of electricity, technical capacity, reagents, and infrastructure. Understanding how POCTs are currently used and determining what health care workers (HCWs) need is key to development of appropriate tests. In 2016, we undertook an email survey of 7584 HCWs who had received training at the Infectious Diseases Institute, Uganda, in a wide variety of courses. HCWs were contacted up to three times and asked to complete the survey using Qualtrics software. Of 555 participants answering the survey (7.3% response rate), 62% completed. Ninety-one percent were from Uganda and 50.3% were male. The most commonly-used POCTs were pregnancy tests (74%), urine dipstick (71%), syphilis rapid test (66%), and Gram stain (41%). The majority (74%) practiced syndromic diagnosis for sexually transmitted infections/HIV. Lack of availability of POCTs, increased patient wait time, and lack of training were the leading barriers for POCT use. Increasing POCT availability and training could improve uptake of POCTs for sexually transmitted infections in Africa and decrease syndromic management. This could reduce overtreatment and slow the emergence of antibiotic resistance. This is the first published email survey of HCWs in Uganda; mechanisms to increase the response rate should be evaluated.