Identify a coherent nomenclature for Cannabis sativa L. derived products and their analogues. Research undertaken in parallel to the three-year assessment of Cannabis derivatives by the World Health Organisation. The scope is limited to Cannabis products intended for human incorporation (internal and topical consumption). Primarily embedded in pharmacognosy, the study incorporates a wide range of scholarly and grey literature, folk knowledge, archives, pharmacopœias, international law, field pharmacy, clinical and herbal medicine data, under a philosophical scrutiny. Generic and Cannabis-specific nomenclatural frames are compared to determine the extent to which they coincide or conflict. All lexica reviewed use weak, ambiguous, or inconsistent terms. There is insufficient scientific basis for terms and concepts related to Cannabis at all levels. No sound classification exists: current models conflict by adopting idiosyncratic, partial, outdated, or utilitarian schemes to arrange the extraordinarily numerous and diverse derivatives of the C. sativa plant. In law and policy, no clear or unequivocal boundary between herbal and non-herbal drugs, nor natural and synthetic cannabinoids was found; current nomenclatures need updates. In science, the botanical Cannabis lexicon overlooks parthenocarpy, and wide disagreement remains as to the taxonomy and systematics of the plant; chemical research should address differences in kinds between synthetic cannabinoids; pharmacopœias include little information related to Cannabis, and disagree on broader classes of herbal medicines, virtually failing to embrace many known Cannabis medicines. Since existing products and compounds fail to be categorised in an evidence-based manner, confusions will likely increase as novel cannabinoid compounds, genetic and biotechnological modifications surge. The lack of clarity is comprehensive: for patients, physicians, and regulators. This study proposes an update of terms at several levels. It points at gaps in morphological descriptions in botany and pharmacognosy and a need for a metaphysical address of cannabinoids. Methods of obtention are identified as a common criterion to distinguish products; the way forward suggests a mutually exclusive nomenclatural pattern based on the smallest common denominator of obtention methods. In the context of a swelling number of Cannabis products being consumed (be it via medical prescription, adult-use, ‘hemp’ foodstuff and cosmetics, or other purposes), this study can assist research, contribute to transparent labelling of products, consumer safety and awareness, pharmacovigilance, medical standards of care, and an update of prevention and harm reduction approaches. It can also better inform regulatory policies surrounding C. sativa, its derivatives, and other cannabinoid-containing products.

“Cannabis” and “cannabis resin” are derived from the Cannabis plant, used as herbal medications, in traditional medicine and as active pharmaceutical ingredients. Since 1961, they have been listed in Schedule IV, the most restrictive category of the single convention on narcotic drugs. The process to scientifically review and reschedule them was launched by the World Health Organisation (WHO) on 2 December 2016; it survived a number of hindrances until finally being submitted to a delayed and sui generis vote by the UN Commission on Narcotic Drugs on 2 December 2020, withdrawing “cannabis” and “cannabis resin” from Schedule IV. To evaluate WHO’s scheduling recommendations, the process leading to the Commission vote and subsequent implications at global, national and patient/clinician levels. Narrative account of the four-year proceedings; review of the practical implications of both rejected and accepted recommendations. The process was historically unprecedented, of political relevance to both medical Cannabis and evidence-based scheduling generally. Procedural barriers hampered the appropriate involvement of civil society stakeholders. The landscape resulting from accepted and rejected recommendations allow countries to continue creating decentralised, non-uniform systems for access to and availability of “cannabis” and “cannabis resin” for medical purposes. Perspective of accredited observers; highlight of institutional issues and the lay of the land; contrast of stakeholders’ interpretations and engagement.

This study explores the trajectory of interest in and use of Extractum Cannabis (hemp extract, i.e., extract of Cannabis sativa L.) for the symptomatic treatment of minor gastrointestinal distress and dyspepsia in nineteenth- and early twentieth-century Barcelona (Catalonia, Spain) prior to 1939, through a review of primary sources. The objective of this paper is to present a historical pharmaceutical and applied review of the medical use of the hemp genus (Cannabis L.) prior to its prohibition, thereby contributing to its recognition as a medicinal product. The information provided demonstrates evidence of the medicinal use of cannabis within the historical context studied. The interactions between this legacy medical use and the contemporary body of pharmacological and toxicological knowledge (on hemp, its constituents, and the endocannabinoid system in gastrointestinal and stomach disorders) are discussed, providing new possible clinical perspectives. Within its limitations—including the scope, limited accessibility to, and varying quality of archives—this research contributes to a more granular understanding of the historical embeddedness of psychoactive hemp medicines in northeastern Spain, suggesting that medical and pharmaceutical traditions could play a role in informing contemporary approaches to “medical marijuana”.

The 1925 Brussels Pharmacopoeia Agreement and Geneva Opium Convention were foundational in shaping international pharmaceutical regulation. The former sought to standardise potent medicines, while the latter established controls over psychoactive substances. Despite differing objectives, both treaties influenced global pharmaceutical governance, contributing to modern regulatory frameworks and standards such as those of WHO or the European Pharmacopoeia. A century later, the year 2025 is witness to turbulent shifts in geopolitics and global health governance, but also revived contemporary debates on drug policy and traditional medicines. This letter revisits the seldom-documented history and impact of international pharmacy law, highlighting the relevance of these two pioneering treaties to evolving pharmaceutical governance and international health law.

Le 2 décembre 2020, les Nations unies votaient la sortie du « cannabis » et de la « résine de cannabis » du Tableau IV annexé à la Convention unique sur les stupéfiants de 1961. Complexe et controversé, le vote et les recommandations de l’Organisation mondiale de la santé l’ayant motivé sont analysés et discutés. Après une revue et actualisation du contexte légal et de l’histoire de la classification internationale du Cannabis et de ses médicaments dérivés, l’article revient sur l’impact, large mais mal compris, du changement de classification internationale des produits du Cannabis , et les conséquences que celui-ci peut avoir pour les patientes et les patients, les professionnel.le.s de la santé, pour les États, mais aussi pour le système des Nations unies et pour le droit international plus largement.