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Corrosion is a major concern for many industries that use metals as structural or functional materials, and the use of corrosion inhibitors is a widely accepted strategy to protect metals from deterioration in corrosive environments. Moreover, the toxic nature, non-biodegradability and price of most conventional corrosion inhibitors have encouraged the application of greener and more sustainable options, with natural and synthetic drugs being major actors. Hence, this paper aims to stress the capability of natural and synthetic drugs as manageable and sustainable, environmentally friendly solutions to the problem of metal corrosion.

In this review, the recent developments in the use of natural and synthetic drugs as corrosion inhibitors are explored in detail to highlight the key advancements and drawbacks towards the advantageous utilization of drugs as corrosion inhibitors.

Corrosion is a critical issue in numerous modern applications, and conventional strategies of corrosion inhibition include the use of toxic and environmentally harmful chemicals. As greener alternatives, natural compounds like plant extracts, essential oils and biopolymers, as well as synthetic drugs, are highlighted in this review. In addition, the advantages and disadvantages of these compounds, as well as their effectiveness in preventing corrosion, are discussed in the review.

This survey stresses on the most recent abilities of natural and synthetic drugs as viable and sustainable, environmentally friendly solutions to the problem of metal corrosion, thus expanding the general knowledge of green corrosion inhibitors.

This article aims to discuss the results on prevalence, patterns of use and motivations for the use of legal high products/new psychoactive substances (NPS) and possible consequences for drug policy.

The main results are derived from a non‐representative quantitative online survey in Germany, focused on persons with experience in legal highs use.

The general prevalence of legal highs varies considerably in different European countries; generally, it is much lower than the lifetime prevalence of illicit drugs. Almost every legal highs user has experience in the use of illicit drugs. Several types of (repeated) users can be identified. “Herbal incense” products are used by many persons in order to compensate for a limited availability of cannabis or to remain inconspicuous for law enforcement. Current research chemicals (RC) users are mainly experienced drug users who seek to expand the range of drugs being consumed with RCs. Repressive drug policy approaches seem to contribute to the use of legal highs as replacement drugs.

Given that many NPS show side effects that are at least as serious as those associated with illicit drugs, and that long‐time risks are unpredictable, repressive drug policy enforcement may lead to increased public health risks regarding drug users.

The survey is the first published quantitative survey focusing on legal highs users. The results have not been published in English yet.

“Spice” products are synthetic cannabimimetics (SC; also called “synthetic cannabinoids”)-based designer drugs used as a legal alternative to cannabis for their very strong tetrahydrocannabinol (THC)-like effects. The purpose of this paper is to provide an analysis of more recent clinical and pharmacology/toxicology findings relating to SC and describe how they could impact on health, with a particular focus on mental health.

A systematic search and descriptive analysis of the available evidence on psychopathological issues related to misuse was performed here, whilst taking into account the Pubmed/Medline databases, a range of conference proceedings and national/international agencies’ reports.

While THC is a partial agonist, SC are full agonists on the cannabinoid receptors (CB-rs) and the administration of multiple SC can produce additive and/or synergistic agonistic interaction effects on the endocannabinoid system. These levels of strong CB-rs’ activation may be high enough to produce severe physiological and psychological disturbances. The available evidence suggests an existing relationship between SC use and psychosis (“Spiceophrenia”). The acute SC intoxication is usually characterized by tachycardia/hypertension; visual/auditory hallucinations; mydriasis; agitation/anxiety; tachypnoea; nausea/vomiting; and seizures.

The absence of clinical trials and longitudinal studies, together with the heterogeneity of SC compounds does not facilitate a precise assessment of the health risks related to their use, with long-term effects being of particular concern.

Appropriate, non-judgemental, prevention campaigns with a special focus on the differences between SC and cannabis may need to be organized on a large scale. At the same time, clinicians need to be regularly updated about novel psychoactive substances, including SC, to promptly recognize signs/symptoms of intoxication.

Mephedrone is a synthetic stimulant drug causing entactogenic and hallucinogenic effects. A systematic review of all existing empirical research and literature from 2009‐2012 on this new psychoactive drug was conducted. This paper aims to report on that review.

The review was conducted according to PRISMA guidelines. Electronic databases were utilised using the search terms “mephedrone” and product nomenclature; “Plant Food”, “Feeder”, “Meow Meow”, “Miaow”, “Drone”, “Meph” “Bubbles”, “Charge”, and “MCat”. The search was restricted to publications from 2009‐2012, and produced 702 results. Data were collected by one member of the research team and cross checked by another. A primary screening was carried out to exclude inaccurate search results and drugs other than mephedrone. The results were studied and duplicates removed; 598 results were discarded, with 104 deemed suitable for inclusion.

The review underscores mephedrone's popularity despite legislative controls. Drug displacement patterns from illicit to licit were observed prior to controls, with blending of mephedrone and other substitute cathinones with street drugs thereafter. User consumptive choices are grounded in availability, perceptions of legality and safety, curiosity and perceived quality of drug outcomes within poly drug taking repertoires. Clinical reports indicate that mephedrone has high abuse potential and toxicity, with several dependence symptoms. Risk assessment, detection, diagnosis and treatment of mephedrone use are difficult due to polydrug use and associated mental health disorders.

The review points to the need for further research into the pharmacology and toxicity of mephedrone in order to better equip clinicians with assessment, diagnosis and treatment strategies to reduce morbidity.

The increasingly diversified new psycho stimulant market where mephedrone is a major player poses unprecedented challenges for drug surveillance, policy, community and clinical practice.

Stricter legislative controls including internet vendor responsibility for supply of mephedrone have been suggested, along with raising public awareness on an international level through coordinated efforts.

The last review was published in 2009 by the Psychonaut Webmapping Group. This review brings together a comprehensive new set of data sources as they relate to this drug.

Women are increasingly involved in a range of drug supply activities, but their role is overlooked in scholarship and policy processes. Women are key actors in plant cultivation (opium poppy, coca and cannabis), trafficking and distribution, but roles in the illegal drug economy are highly gendered stratified. Women most usually occupy low levels in supply and distribution chains, with their access to markets mediated by men. Nevertheless, participation by women in drug supply enables them to support precarious household incomes and/or cover the costs of dependent or casual drug use. More women are coming into drug supply and use at a time when a number of countries are adopting more repressive and punitive drug policies. The impact of enforcement is a sharp increase in numbers of incarcerated women, with implications for care of families and children.

Novel psychoactive substances (NPS) – often known as “legal highs” – are a varied group of substances that are causing concern due to their possible effects on mental health. Particular concerns have been raised about synthetic cannabinoid receptor agonists often known as “Spice”. The purpose of this paper is to identify the prevalence of NPS use and explore any association with acute psychological disturbance.

The authors reviewed the case notes for 153 admissions to a male acute inpatient ward. Prevalence of reported NPS use and admissions to psychiatric intensive care unit (PICU) were recorded.

In total, 18.9 per cent of individuals admitted to acute inpatient care were reported to have used NPS. NPS users were almost ten times as likely as their non-NPS using peers to require care in PICU. This result was statistically significant (Fisher exact test: p<0.001). Although caution is required given the limitations of this study, the data and clinical experience suggest that synthetic cannabinoids may be the specific type of NPS that is being used by this group.

Mental health professionals can expect to care for people using NPS in acute inpatient environments, and so they need to understand the nature and effects of these substances. It is possible that NPS use may be associated with sustained acute psychological disturbance.

There have been few studies on the prevalence of NPS use in inpatient environments and none of them have published that explore the association with PICU admission. Despite the limitations of this study, it has significant value by identifying an urgent need for comprehensive research in this area.

Women across the world are being incarcerated at an alarming rate. Between 2000 and 2017, the female incarceration rate worldwide increased by 53.3%, whereas the male incarceration rate increased by only 19.6%. In Latin America, drug offences are the first or second cause of female incarceration. The excessive use of pre-trial detention, mandatory minimum sentences, and disproportionate penalties characterise the region’s drug policies. Recent data compiled by the Washington Office on Latin America show that between 35% and 70% of incarcerated women, depending on the country, are behind bars due to a drug offence, while for men the rate is much lower. In other words, harsh drug laws disproportionately impact women.

Qualitative research on female prisoners accused of drug-related offences shows how gender roles, gender-based violence and social exclusion are often triggering factors for women’s participation in the drug trade. Agency and victimisation co-exist in these women’s stories, and while drug trafficking becomes a means to cope with adversity, it also further enhances previous vulnerabilities, and incarceration can have a devastating impact on their families. These women are engaged in high-risk activities but represent a low risk to society. Drug law reforms and the use of alternatives to incarceration could reduce the number of women behind bars for low-level drug offences.

Since the adoption of the 1988 UN Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances, an increasing number of state parties are according attention to the regulation of precursors. The term ‘precursor’ is neither a scientific nor a technical term. It is used to refer to various substances such as chemicals, acids, solvents and reagents that are frequently used in the illicit manufacture of narcotic drugs and psychotropic substances.