Search Results (31)

The current paper examines the sustainable possibility for recycling unused or expired Metoprolol (MET), a benzodiazepine derivative, as an effective corrosion inhibitor for carbon steel in saline solutions. Repurposing expired medicinal drugs aligns with green chemistry concepts and supports circular economy initiatives by reducing pharmaceutical waste and averting the production of new synthetic inhibitors. The technical benefit of recycling expired MET drugs pertains to the elimination of costs associated with organic inhibitor manufacturing and the decrease in disposal expenses for the expired medication. A combination of electrochemical techniques (potentiodynamic polarization and electrochemical impedance spectroscopy) and quantum chemical calculations was employed to evaluate the inhibitory mechanism and efficacy of MET. At a concentration of 10⁻³ M, MET reduced the corrosion current density from 19.38 to 5.97 μA cm⁻², achieving a maximum IE of 69.1%. Adsorption Gibbs free energy, determined using different adsorption isotherms, revealed that interactions between metal atoms and MET adsorbed molecules have a chemical character with a ∆G^o_ads value of −50.7 kJ·mol⁻¹. Furthermore, quantum chemistry calculations indicate that the investigated drug, owing to its molecular structure (E_HOMO = −9.12 eV, E_LUMO = 0.21 eV, µ = 3.95 D), possesses the capacity to establish an adsorption layer on the metal surface, thereby impeding the diffusion of molecules and ions involved in the overall corrosion process. The results obtained using the different techniques were in good agreement and highlighted the effectiveness of MET in the corrosion inhibition of carbon steel. Full article

(1) Background: Although Sri Lanka is a developing country and boasts of having a well-established healthcare system along with good healthcare indices, we are still lagging in certain aspects of healthcare. One such aspect is the deficiencies in guidelines and practices related to the handling of pharmaceutical waste. (2) Methods: This was a qualitative study performed using in-depth interviews with the help of a semi-structured questionnaire conducted among staff who are working at a ministry complex in Galle, Sri Lanka. Data analysis was performed using thematic analysis, (3) Results: There were 40 participants which included 29 (72.5%) females. Three main themes were identified, namely, (I) current knowledge, (II) perceptions, and (III) practices towards storage, disposal, and misuse of pharmaceutical waste. The death of the patient, forgetting, relieving symptoms, and adverse effects were some reasons for the accumulation of unused pharmaceuticals at home. Most of the participants did not believe that the reuse of unused medications can cause various health hazards. Moreover, all participants practiced unsafe methods such as flushing down toilets, pouring into a sink, burning, etc. (4) Conclusions: The incorrect practices and poor knowledge in the handling of pharmaceutical waste and less concern for the environment highlight the need for awareness programs to the general public and establishing proper medication waste management such drug take-back systems. Full article

With the rapid development of the pharmaceutical industry and constant growth of drug usage, ecopharmacovigilance (EPV) has emerged as a way of coping with and minimizing the effects that drugs have on the environment. EPV concerns and describes unwanted effects that the use of a specific drug could have on the environment. The US, EU and Cananda are the improving position of EPV, both in legislation and practice. EPV requires further development as previous studies have shown that neither the general population nor healthcare professionals have enough knowledge about the subject. Improving awareness and knowledge about this topic is a key task for the future of EPV. The main objective was to determine students’ level of knowledge about ecopharmacovigilance and to examine ways of storing and disposing of unused and expired drugs. Students’ knowledge and habits were examined by a previously published survey. The survey contains twenty questions divided into three parts and the possibility of writing an additional note. There was no difference in the level of knowledge between the students of different studies. Also, students who had a family member working as healthcare professional did not show a higher level of knowledge compared to the others. Pharmacy students had a greater intention to educate their environment about EPV when compared to students of the other studies. This is in the line with a previous study which showed that the general public expects that pharmacists and physicians educate them about EPV. Medicine and dental medicine students will become prescribers after finishing their studies, and as such, they should be informed about eco-directed sustainable prescribing (EDSP) as part of an EPV strategy. More than half of the participants reported good adherence to prescribers’ instruction, which decreased the amount of unused drugs. Most of the students found that the drug expiration date was legible, but they did not check it often. In comparison with similar studies, Croatian students had more knowledge and better practices concerning EPV and drug disposal. Structured learning strategies and curriculum implementation for EPV are much needed for further raising awareness about the subject among healthcare professionals and the public. Full article

This review focuses on the crucial role of aquatic ecosystems in preserving biodiversity and the biosphere, as well as the connection between antimicrobial resistance (AMR) and these ecosystems. It provides an in-depth analysis of the link between ecological well-being and public health, helping readers understand this complex subject. Aquatic ecosystems are essential for maintaining biodiversity and ecological balance. Additionally, they act as primary reservoirs and pathways for the spread of antimicrobial resistance (AMR). These ecosystems risk antibiotic contamination through various sources, such as the release of antibiotics from animal and human waste, improper disposal of unused medications, and pharmaceutical industry waste management practices. The presence of antibiotic residues in these environments significantly speeds up the development of bacterial resistance. The global prevalence of antimicrobial resistance (AMR) is evident in freshwater bodies, tributaries, sewage waters, and wastewater treatment facilities. Antimicrobial resistance (AMR) is now a significant public health threat, compromising the effectiveness of many previously successful treatments against various pathogens. One notable and alarming aspect of antimicrobial resistance (AMR) is its rapid development, often occurring within 5–10 years after introducing antimicrobial drugs to the market. This acceleration is closely tied to bacteria’s ability to thrive and adapt in the presence of antimicrobial agents and their residues in the environment. The implications of antimicrobial resistance (AMR) include treatment failures with long-term effects and a continuous increase in healthcare costs. This review comprehensively examines the intricate relationship between aquatic habitats, antibiotics, and the global challenge of antimicrobial resistance (AMR). It emphasizes the critical role of these ecosystems in preserving ecological diversity. It raises awareness about AMR’s urgent public health issue, laying a foundation for understanding its extensive consequences. Full article

Pharmaceutical waste management represents a global issue. There is a significant gap in consumers’ education regarding the proper disposal of pharmaceutical waste. A significant amount of pharmaceutical waste is generated in health care facilities, including expired medicines, unused doses, and contaminated materials. Inadequate disposal of pharmaceutical waste can have effects on human health and on the environment. Managing pharmaceutical waste requires coordinated efforts from policymakers, health care providers, pharmaceutical manufacturers, waste management companies, and consumers. The purpose of this paper is to examine the current state of activities that may impact the efficiency of Romanian pharmacists in collecting and disposing of pharmaceutical waste, as well as the intentions of pharmacists/technicians to recycle this type of waste. Furthermore, this paper aims to identify institutional and behavioral barriers that affect effective waste management. This research was conducted using quantitative and qualitative research methods. An exploratory factor analysis was used to identify the elements of satisfaction and their attribution levels in the pharmaceutical industry. The statistical significance of the differences across different occupations regarding satisfaction with pharmacists’ activities to reduce waste at each stage was tested using an analysis of variance. Cross-tabulation and a Pearson’s chi-square test were used to analyze the relationship between occupational segments and intention regarding recycling and reusing pharma waste. This research was augmented using qualitative analysis based on the Delphi technique, focused on the barriers to waste management in the pharmaceutical sector. This study presents a general perspective on the current situation of pharmaceutical waste in Romania. The results indicate that the selection of appropriate pharmaceutical waste practices is primarily determined by the attitude of individuals and organizations, followed by regulatory, economic, and technical criteria. In developing sustainable pharmaceutical waste policies, this research provides practical implications for governments, organizations, and citizens. A comprehensive approach to overcoming barriers in pharmaceutical waste management was developed by combining institutional strategies that focus on organizational policies and infrastructure with behavioral strategies that target individuals and communities. Full article

In most cases, the unused by-products of venison, including deer tallow, are disposed of in rendering plants. Deer tallow contains essential fatty acids and can be used to prepare products for everyday food and advanced applications. This work aimed to process deer tallow into hydrolyzed products using microbial lipases. A Taguchi design with three process factors at three levels was used to optimize the processing: amount of water (8, 16, 24%), amount of enzyme (2, 4, 6%), and reaction time (2, 4, 6 h). The conversion of the tallow to hydrolyzed products was expressed by the degree of hydrolysis. The oxidative stability of the prepared products was determined by the peroxide value and the free fatty acids by the acid value; further, color change, textural properties (hardness, spreadability, stickiness, and adhesiveness), and changes at the molecular level were observed by Fourier transform infrared spectroscopy (FTIR). The degree of hydrolysis was 11.8–49.6%; the peroxide value ranged from 12.3 to 29.5 µval/g, and the color change of the samples expressed by the change in the total color difference (∆E*) was 1.9–13.5. The conditions of enzymatic hydrolysis strongly influenced the textural properties: hardness 25–50 N, spreadability 20–40 N/s, and stickiness < 0.06 N. FTIR showed that there are changes at the molecular level manifested by a decrease in ester bonds. Enzymatically hydrolyzed deer tallow is suitable for preparing cosmetics and pharmaceutical matrices. Full article

Drug waste poses a real threat to human health and the environment. Therefore, recycling and sustainability scholars have recently sought practical solutions to the drug waste problem. Furthermore, several governments have made significant efforts to reduce the negative effects of waste, such as establishing programs to take back unwanted drugs (expired and unused) for recycling (i.e., drug reuse or drug redispersing). However, many of these programs have failed to achieve their goals. In this context, it is expected that creating green start-ups to collect unwanted drugs will contribute to solving this problem. Accordingly, this study aims to investigate the antecedents of intentions to create green start-ups for collecting unwanted drugs. To this end, the authors integrate start-up self-efficacy and drug waste collection-related knowledge constructs into the theory of planned behavior (TPB). Using a self-administered paper questionnaire and relying on a convenience sample, data were collected from 328 students in six Algerian universities. A hierarchical multiple regression was conducted to test the proposed study model. Theresults revealed that perceived behavioral control (PBC) (β = 0.187, p < 0.001), attitudes (β = 0.182, p = 0.002), start-up self-efficacy (β = 0.169, p = 0.001), drug waste collection-related knowledge (β = 0.161, p < 0.001), and subjective norms (β = 0.088, p < 0.05) have a positive significant effect on the intention to create a start-up to collect unwanted drugs. In conclusion, this paper contributes to reducing drug waste by investigating the drivers of intention to create green start-ups for collecting unwanted drugs. Therefore, our study is expected to provide valuable insights for hospitals, pharmacies, pharmaceutical manufacturers, environmental protection associations, and stakeholders interested in reverse logistics. Full article

Medicinal and aromatic plants, such as wild garlic (Allium ursinum), are valuable sources of bioactive compounds in traditional and modern medicine. However, the challenges in cultivating wild garlic and its seasonality limit its availability primarily to early spring. To maintain the quality of wild garlic, effective postharvest practices are essential, considering the delicate nature of its leaves and their susceptibility to rapid decay. This study focuses on implementing eco-friendly postharvest practices to address the seasonality and perishability of wild garlic. Optimizing storage conditions and drying processes is essential for extending its shelf life and preserving bioactive components. Two postharvest approaches were evaluated, with vacuum packaging at 4 °C demonstrating the most effective preservation of sensory attributes and bioactive composition over a 9-day period. Additionally, different drying methods, including convective and vacuum drying at various temperatures, were investigated. When the best drying temperature was selected, the results revealed that convective drying is more efficient at preserving phenolic compounds in wild garlic leaves at 60 °C. Conversely, vacuum drying shows superior preservation of alliinase activity and total thiosulfinate content at 70 °C. Furthermore, this study explores the utilization of unused wild garlic, which is typically discarded as waste during storage. By employing suitable drying methods, this material can be preserved and provide a valuable source of phenolic compounds (7.17–10.12 g GAE/100 g) and thiosulfinate (9.35–12.72 mg AC/110 g) compounds for various extraction processes. Accordingly, this research presents significant implications for the integration of wild garlic into diverse industries, particularly in the fields of food and pharmaceutical sectors. The findings offer opportunities for sustainable utilization, economic benefits, and a more environmentally friendly and economically viable approach to wild garlic production and processing. Full article

COVID-19 caused an increase in the demand for medications, which led to an increase in pharmaceutical waste and there is no doubt that this contributes to environmental pollution. Hence, it became necessary to search for how to protect and improve the environment by encouraging the behavior of medication waste reduction. Accordingly, this study aims to investigate the factors affecting intentions to reduce medication waste. Considering this, we develop an extended theory of planned behavior (TPB) framework by incorporating the constructs of moral obligation, environmental awareness, and medication waste risk perception. Using the convenience sampling method and based on a self-administered questionnaire, a total of 225 usable responses were collected in five Algerian cities. The results showed that positive attitudes (β = 0.316, p < 0.001), moral obligation (β = 0.291, p < 0.001), environmental awareness (β = 0.227, p < 0.001), perceived behavior control (PBC) (β = 0.151, p = 0.001), greater perceived risks (β = 0.127, p < 0.001), and subjective norm (β = 0.096, p < 0.05) significantly and positively influence the medication waste minimization intention. Furthermore, our analyses revealed that the extended TPB model explained 73.40% of the intention variance. In conclusion, we have explored the intentions, and there may be a gap between intent and actual behavior. Therefore, we recommend future studies to examine the factors affecting the actual behavior of medication waste reduction and to investigate environmental ethics and religious commitment as predictors of waste reduction intentions. Full article

Flash nanoprecipitation (FNP) is a turbulent mixing process capable of reproducibly producing polymer nanoparticles loaded with active pharmaceutical ingredients (APIs). The nanoparticles produced with this method consist of a hydrophobic core surrounded by a hydrophilic corona. FNP produces nanoparticles with very high loading levels of nonionic hydrophobic APIs. However, hydrophobic compounds with ionizable groups are not as efficiently incorporated. To overcome this, ion pairing agents (IPs) can be incorporated into the FNP formulation to produce highly hydrophobic drug salts that efficiently precipitate during mixing. We demonstrate the encapsulation of the PI3K inhibitor, LY294002, within poly(ethylene glycol)-b-poly(D,L lactic acid) nanoparticles. We investigated how incorporating two hydrophobic IPs (palmitic acid (PA) and hexadecylphosphonic acid (HDPA)) during the FNP process affected the LY294002 loading and size of the resulting nanoparticles. The effect of organic solvent choice on the synthesis process was also examined. While the presence of either hydrophobic IP effectively increased the encapsulation of LY294002 during FNP, HDPA resulted in well-defined colloidally stable particles, while the PA resulted in ill-defined aggregates. The incorporation of hydrophobic IPs with FNP opens the door for the intravenous administration of APIs that were previously deemed unusable due to their hydrophobic nature. Full article

Nowadays, the contamination caused by emerging pollutants is a global concern due to the lack of scientific evidence to demonstrate the risk or toxicity to humans due to the presence of pharmaceutical residues in the environment. This study aimed to identify and describe the disposal practices of unused and unwanted medications, as well as to analyze and identify the most frequent drugs determined on water bodies adjacent to the biggest urban population in Mexico. A two-phase study with an epidemiological and an ecological assessment was performed. The epidemiological phase was carried out with a descriptive cross-sectional study among citizens from Mexico City and the metropolitan area using an electronic survey applied to 719 subjects aimed to assess practices in which pharmaceutical products are disposed. The ecological phase included a review of scientific reports. The results show that nearly 83.5% of those surveyed use inappropriate practices for disposal medicines, the main ones are through the municipal dump or directly in the drain. The ecological approach was carried out by a systematic literature review of original reports published between 2013 to 2023; information about the class of drugs, active substance, environmental compartments, location, and concentration was extracted and presented. Fifty-one different types of pharmaceutical residues were detected in wastewater in Mexico City in the last decade. The results of this study can contribute to the application of public policies for waste management authorities to mitigate the socio-environmental risks due to the inappropriate disposal of medicines. Full article

Pharmacists and their teams play an important role in providing public health services, however little is known about their level of contribution and the strength of evidence in Africa’s Low- and Middle-Income Countries (LMICs). The purpose of this scoping review was to explore and map the available evidence on pharmacy professional-delivered public health interventions in Africa’s LMICs. Six electronic databases (Medline, Embase, International Pharmaceutical Abstract, PsycInfo, Maternity and Infant Care, and Cochrane database), relevant grey literature sources, key journals focused on African health issues, and libraries of relevant organizations were searched between January 2010 and December 2020. Studies were included if they reported public health interventions delivered by pharmacy professionals (pharmacists or pharmacy technicians) or their teams. The quality of the individual studies was assessed using an adapted grading system. Thirty-nine studies were included in this review. Pharmacy professionals delivered a wide range of public health interventions, with the most common themes being noncommunicable diseases, infectious diseases, sexual and reproductive health, antimicrobial resistance, and other health conditions, e.g., dental health, unused drugs or waste, minor ailments. The majority of the studies were classified as low-quality evidence. They were predominantly feasibility and acceptability studies conducted in a narrow study area, in a small number of LMICs in Africa, resulting in little evidence of service effectiveness, issues of broad generalizability of the findings, and sustainability. The major constraints to service provision were identified as a lack of training, public recognition, and supporting policies. Pharmacy professionals and their teams across LMICs in Africa have attempted to expand their practice in public health. However, the pace of the expansion has been slow and lacks strong evidence for its generalizability and sustainability. Future research is needed to improve the quality of evidence, which will subsequently serve as a foundation for policy reform, allowing pharmacy professionals to make significant contributions to the public health initiatives in the region. Full article

Pharmaceuticals are widely used in Africa due to the high burden of human and animal diseases. However, a review of the current practices and pollution risks arising from the disposal of pharmaceuticals in low-income settings in Africa is still lacking. Therefore, the present review examined the literature to address the following questions: (1) what are the key factors driving the accumulation of unused and expired pharmaceuticals?, (2) what are the current disposal practices for unused and expired pharmaceuticals, and wastewater (feces and urine) containing excreted pharmaceuticals?, (3) what are the potential environmental and human health hazards posed by current disposal practices?, and (4) what are the key research needs on the disposal of pharmaceuticals in low-income settings? Evidence shows that, in low-income settings, wastewater comprising predominantly of feces and urine containing excreted pharmaceuticals often end up in on-site sanitation systems such as pit latrines, septic tanks, and the environment in the case of open defecation. Unused and expired pharmaceuticals are disposed of in pit latrines, household solid waste, and/or burned. The pollution risks of current disposal practices are poorly understood, but pharmaceutical pollution of groundwater sources, including those used for drinking water supply, may occur via strong hydrological connectivity between pit latrines and groundwater systems. Potential high-risk pollution and human exposure hotspots are discussed. However, compared to other environmental compartments, the occurrence, dissemination, fate, and human health risks of pharmaceuticals in the pit latrine-groundwater continuum are still understudied. Future research directions are discussed to address these gaps using the Source-Pathway-Receptor-Impact-Mitigation (SPRIM) continuum as an organizing framework. Full article

The reissuing, redispensing, redistributing, or even recycling of the returned unused stored medicines is referred to as medicine reuse. A few studies have examined people’s willingness to reuse unused stored medicines. This study aims primarily to explore the public’s willingness to reuse unused stored medicines in the future and the factors affecting their decisions, and to assess the pharmacological types and formulations of the unused stored medicines by the public. A cross-sectional study was conducted using a convenient sampling technique over three weeks (February–March 2022) among Jordanian populations. Data were collected from 681 participants who agreed to fill out a questionnaire, which was distributed online. Participants showed a positive perception of reusing any of the unused stored medicines in the future; of those, 79.6% (n = 400) believed that reusing “unused medicines” has economic benefits and 50% (n = 251) believe there are environmental benefits. Moreover, more than half of the participants believed that reusing “unused medicines” is safe (n = 256, 51%), but provided that a pharmacist or a doctor evaluates their quality or that the unused medicines are stored well. Results from this study show that the public positively endorses the idea of reusing unused stored medicines if the quality and safety are assured. However, future studies are needed to evaluate the Jordanian healthcare professionals’ perceptions towards medicine reuse and pharmaceutical companies’ willingness to be a part or facilitator of medicine reuse. Full article

The negative effect of the pharmaceuticals presence (persistence?) in various components of the environment is a global problem today. These compounds are released into the environment as a result of, inter alia, their use and improper disposal. Therefore, it is important to reduce excessive drug consumption and to develop a system for the collection of unused/expired pharmaceuticals. The effectiveness of actions in this area is inextricably linked with the need to educate society on how to deal properly with unwanted medications. The aim of the study was to show that the inappropriate handling of unused/expired drugs by society is an important problem in waste management systems, and it impacts the state of the environment. Forty-eight scientific articles published between 2012 and 2021 were taken into account that discussed the systems in various countries for the collection of unused/expired pharmaceuticals. This literature review shows that the main method of disposing of unused/expired medications, according to respondents from different countries, is either by disposing of them in household waste or flushing them into the sewage system. This is also the case in countries with systems or programs for the return of redundant drugs, which indicates that these systems are not sufficiently effective. This may be influenced by many factors, including the lack or ineffective education of the society. Full article