{"title":"Correct Recognition and Appeal Ratings of Copycat Cannabis Edible Packaging: Evidence from an Online Experiment.","authors":"Michael Cooper, Yuyan Shi","doi":"10.1089/can.2025.0017","DOIUrl":"10.1089/can.2025.0017","url":null,"abstract":"<p><p><b>Introduction:</b> Despite prohibitions against youth-appealing packages, deceptive \"copycat\" cannabis edible packages have been commonly seen in U.S. states that legalized recreational cannabis. Copycat packages mimic the branding features of popular food products, posing a high risk for accidental ingestion, particularly for the younger population. <b>Materials and Methods:</b> An online experiment was conducted among a representative sample of young adults aged 18-29 (<i>N</i> = 2,523). Participants were asked in timed trials to identify whether each package in a series of images contained cannabis content. Regression analysis was conducted to analyze the association between package type and correct identification and the association between correct identification and appeal ratings. <b>Results:</b> Copycat cannabis packages were associated with lower odds of correct identification of cannabis content (odds ratio = 0.35, 95% CI = [0.31, 0.40]) compared with the non-copycat branded cannabis package. Correct identification of cannabis content was associated with lower appeal ratings (odds ratio = 0.75, 95% CI = [0.69, 0.81]). <b>Discussion:</b> Copycat cannabis packages were associated with elevated risk of misidentification of cannabis content, making them a public health risk for accidental ingestion. Package features that make a package easily identifiable were less appealing, underscoring the need of requiring salient features to indicate cannabis content on cannabis packages.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"420-424"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143983154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N Herwig, S Utgenannt, F Nickl, P Möbius, L Nowak, O Schulz, M Fischer
{"title":"Classification of Cannabis Strains Based on their Chemical Fingerprint-A Broad Analysis of Chemovars in the German Market.","authors":"N Herwig, S Utgenannt, F Nickl, P Möbius, L Nowak, O Schulz, M Fischer","doi":"10.1089/can.2024.0127","DOIUrl":"10.1089/can.2024.0127","url":null,"abstract":"<p><p><b>Introduction:</b> Cannabis cultivars were usually categorized based on their genetic profile as sativa, indica, or hybrid types. However, these three criteria do not allow sufficient differentiation between the numerous varieties of cannabis strains. Furthermore, this classification is based on morphological and bio-geographical properties of the plants and does not represent the chemical composition of different cultivars. The concentration of cannabinoids and terpenes are crucial for the pharmacological effect, not only because of the known entourage effect, and therefore needs to be considered by categorization. <b>Materials and Methods:</b> A total of 140 medicinal cannabis flowers available on the German market were analyzed regarding their individual terpene profile using GC-MS analysis. Statistical evaluation was performed to investigate correlations and data relations as well as for clustering. <b>Results:</b> Multivariate analysis showed correlations between individual terpenes. However, there was no statistical correlation between terpene profiles and their respective genetic profile. Terpene profiles of sativa, indica, and hybrid strains are quite heterogenous and clearly showed that there is no relation between terpenes and the estimated pharmacological effect. As a result, we suggest a new classification system based on individual terpene profiles to faster a comprehensive understanding of the expected medical effect. <b>Discussion:</b> Considering main terpenes, we established a concept of six clusters with various terpene profiles being attributed to different medicinal applications. We excluded tetrahydrocannabinol (THC) and cannabidiol (CBD) content from clustering as most of the strains were THC dominant and therefore distort the results. Our pattern of strains with similar terpene profiles might refine the existing classes of chemotypes with different THC:CBD content. <b>Conclusion:</b> The categorization of cannabis strains based on their terpene profiles allows a clearer, finer and, above all, more meaningful classification than the existing sativa/indica classification. Due to the entourage effect and the interactions between cannabinoids and terpenes, this group of substances is also given the necessary consideration when selecting the right medicine for the individual. Within the next steps, further studies are needed with the aim of mapping clinical validated effects to our chemovars. If it is possible to correlate therapy of symptoms to specific chemical profiles personalized cannabinoid therapy will be possible.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"409-419"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141975125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haron M Jeddi, Jason W Busse, Behnam Sadeghirad, Mitchell Levine, Caroline MacCallum, Li Wang, Rachel J Couban, Jean-Eric Tarride
{"title":"Cost-Effectiveness of Medical Cannabis Versus Opioids for Chronic Noncancer Pain.","authors":"Haron M Jeddi, Jason W Busse, Behnam Sadeghirad, Mitchell Levine, Caroline MacCallum, Li Wang, Rachel J Couban, Jean-Eric Tarride","doi":"10.1089/can.2024.0120","DOIUrl":"10.1089/can.2024.0120","url":null,"abstract":"<p><p><b>Background:</b> Chronic noncancer pain (CNCP) affects one in five adults and is commonly managed with long-term opioid therapy. Concerns regarding rare but catastrophic harms associated with opioids, including overdose and death, have generated interest in alternatives including cannabis; however, the comparative cost-effectiveness of these management options is uncertain. <b>Methods:</b> We used findings from a network meta-analysis of 90 randomized trials to develop a 1-year microsimulation model to compare costs and quality-adjusted life years (QALY) between oral medical cannabis and opioids for CNCP. We used a publicly funded health care payer perspective for our analyses and obtained cost and utility data from publicly available sources. All costs are reported in 2023 Canadian dollars. All analyses were probabilistic, and we conducted sensitivity and scenario analyses to assess robustness. <b>Results:</b> Total mean annual cost per patient was $1,980 for oral medical cannabis and $1,851 for opioids, a difference of $129 (95% confidence interval [CI]: -$723 to $525). Mean QALYs were 0.582 for both oral medical cannabis and opioids (95% CI: -0.007 to 0.015). Cost-effectiveness acceptability curves showed that oral medical cannabis was cost-effective in 31% of iterations at willingness-to-pay thresholds up to $50,000/QALY gained. Use of opioids is associated with nonfatal and fatal overdose, whereas medical cannabis is not. <b>Discussion:</b> Our findings suggest that medical cannabis as an alternative to opioids for chronic pain may confer similar, but modest, benefits to patients, and reduce the risk of opioid overdose without substantially increasing costs.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"467-479"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143963710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bing Han, Hojin Park, Yanyun He, Ce Shang, Yuyan Shi
{"title":"Estimating the Price Elasticity of Cannabis Use Among U.S. Adults: Evidence from States with Recreational Cannabis Commercialization.","authors":"Bing Han, Hojin Park, Yanyun He, Ce Shang, Yuyan Shi","doi":"10.1089/can.2024.0164","DOIUrl":"10.1089/can.2024.0164","url":null,"abstract":"<p><p><b>Introduction:</b> Following the spread of recreational cannabis legalization and commercialization, cannabis has become increasingly available at lower prices. As policies regulating prices are common tools to control the demand for commercialized drugs, it is crucial to understand how cannabis use responds to price changes. In this study, we assessed the association between wholesale prices for legal cannabis flower and adults' self-reported current cannabis use in ten states with recreational cannabis commercialization in the U.S. <b>Materials and Methods:</b> We conducted a secondary data analysis using individual-level data on cannabis use from the longitudinal Population Assessment of Tobacco and Health Study, during 2015 and 2021. Our analysis included 19,812 U.S. adults from ten states that legalized recreational cannabis sales during the study period. We first conducted logistic regressions to estimate the association between state-level cannabis prices and individual current cannabis use. To address potential endogeneity of cannabis prices, we then employed generalized method of moment (GMM) estimator, using cannabis taxes as an instrumental variable (IV). <b>Results:</b> IV-based GMM regressions suggested that cannabis taxes were a significant predictor of cannabis prices. However, the association between legal cannabis flower prices and adults' current cannabis use was negative but statistically insignificant (coefficient = -0.18, <i>p</i> = 0.086). Price elasticity estimates for current cannabis use ranged from -0.66 to -0.59 across different model specifications. <b>Conclusion:</b> In the initial years of recreational cannabis commercialization in the U.S., the price elasticity of cannabis use among adults was negative but statistically insignificant. Given the rapid progression of commercialization, further research utilizing longer-term data is needed.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"480-488"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143699778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniela Schwotzer, Justyna Kulpa, Andrew Gigliotti, Wendy Dye, Kristen Trexler, Hammad Irshad, Tim Lefever, Mark Ware, Marcel Bonn-Miller, Jacob McDonald
{"title":"Biological Response after 14-Day Cannabidiol and Propylene Glycol Inhalation in Sprague-Dawley Rats.","authors":"Daniela Schwotzer, Justyna Kulpa, Andrew Gigliotti, Wendy Dye, Kristen Trexler, Hammad Irshad, Tim Lefever, Mark Ware, Marcel Bonn-Miller, Jacob McDonald","doi":"10.1089/can.2023.0132","DOIUrl":"10.1089/can.2023.0132","url":null,"abstract":"<p><p><b>Objective:</b> Cannabidiol (CBD), a phytocannabinoid of increasing interest for its purported therapeutic effects, is primarily consumed <i>via</i> ingestion and inhalation. While the toxicology of orally administered CBD has been reported, little is known about the effects of CBD inhalation. Doses selected for the present analysis allowed for evaluation of dose-response at concentrations >100-fold higher than typical human consumption levels. <b>Materials and Methods:</b> CBD (98.89% pure) was formulated in propylene glycol (PG) and aerosolized by nebulization to evaluate biological response after nose-only inhalation. Sprague Dawley rats (<i>n</i> = 35 males, 30 females) were exposed to 1.0 and 1.3 mg/L nominal concentrations of CBD and PG, respectively, for 12-180 min. Resulting average daily presented dose ranges were 8.9-138.5 mg/kg CBD and 11.3-176.0 mg/kg PG. Aerosols of 1.4 µm median diameter were achieved. Biological response indicators included clinical signs, clinical chemistry, hematology, body/organ weights, and pulmonary/systemic histopathology. <b>Results:</b> Inflammatory and necrotic responses were observed in the nose at the highest doses of CBD. Limited findings in the larynx and lung were mainly observed at higher doses. There were no histological findings in extrapulmonary organs. Dosimetry modeling differentiated the no observable adverse effect level between the nasal region and lungs to be 2.8 and 10.6 mg/kg CBD, respectively. <b>Conclusions:</b> Dose-depending findings of histological changes in the respiratory tract are observed at high doses. At lower doses consistent with typical over-the-counter vape products there appears to be substantial safety margin in the present study (93- and 353-fold lower for nose and lung, respectively).</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"436-444"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142495625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joseph T Pastina, Mark G Abel, Lance M Bollinger, Stuart A Best
{"title":"Topical Cannabidiol Application May Not Attenuate Muscle Soreness or Improve Performance: A Randomized, Double-Blinded, Placebo-Controlled Pilot Study.","authors":"Joseph T Pastina, Mark G Abel, Lance M Bollinger, Stuart A Best","doi":"10.1089/can.2024.0012","DOIUrl":"10.1089/can.2024.0012","url":null,"abstract":"<p><p><b>Purpose:</b> The purpose of this pilot study was to investigate cannabidiol (CBD) cream's effects on muscle soreness and performance after exercise. <b>Materials and Methods:</b> This double-blinded, placebo-controlled experiment included 15 men and 13 women (<i>n</i> = 28; mean ± standard deviation age: 23.29 ± 2.54 years) untrained in lower-body resistance training. Participants were randomized into control (NG, <i>n</i> = 9), CBD (CG, <i>n</i> = 9), or placebo (PG, <i>n</i> = 10) groups. Participants completed a lower-body fatigue protocol (FP) consisting of unilateral maximal concentric and eccentric isokinetic muscle actions of the quadriceps and hamstrings (5 sets, 10 repetitions, both legs). CG and PG participants applied ∼100 mg CBD or placebo cream, respectively, matched for weight and appearance to the quadriceps on three separate days. NG participants engaged in a sitting rest period matched in duration to cream application processes. Questionnaires, pressure-pain threshold (PPT), peak torque test (PTT), and countermovement jump (CMJ) were assessed. Mixed-model analysis of variance was conducted to assess main effects and interactions (group × muscle × time; group × time). <b>Results:</b> There were no significant interactions or main effects for group for PPT, CMJ, or PTT. There were main effects for time (<i>p</i> < 0.05) for all soreness questions, PPT, CMJ, and PTT. There was one significant interaction (group × time; <i>p</i> = 0.045) for cream/rest effect questions, in which PG participants perceived the effect of cream to be greater than the effect of rest for NG participants. There were main effects for group (<i>p</i> ≤ 0.031) for all soreness questions, in which PG participants perceived enhanced recovery. <b>Conclusions:</b> The present pilot study did not discover any significant impacts of CBD cream use for muscle recovery. For individuals seeking to attenuate muscle soreness and improve performance, the current dose of this topical CBD product may not be an effective treatment.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"445-456"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141562639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoxi Zheng, Beth Ehrlich, David Finlay, Michelle Glass
{"title":"No Evidence for Endocannabinoid-Induced G Protein Subtype Selectivity at Human and Rodent Cannabinoid CB<sub>1</sub> Receptors.","authors":"Xiaoxi Zheng, Beth Ehrlich, David Finlay, Michelle Glass","doi":"10.1089/can.2024.0133","DOIUrl":"10.1089/can.2024.0133","url":null,"abstract":"<p><p><b>Introduction:</b> The endocannabinoid system (ECS) is a widespread neurotransmitter system. A key characteristic of the ECS is that there are multiple endogenous ligands (endocannabinoids). Of these, the most extensively studied are arachidonoyl ethanolamide (AEA) and 2-arachidonoyl-glycerol (2-AG), both act as agonists at the cannabinoid CB<sub>1</sub> receptor. In humans, three CB<sub>1</sub> variants have been identified: hCB<sub>1</sub>, considered the most abundant G protein-coupled receptor in the brain, alongside the less abundant and studied variants, hCB<sub>1a</sub> and hCB<sub>1b</sub>. CB<sub>1</sub> exhibits a preference for coupling with inhibitory G<sub>i/o</sub> proteins, although its interactions with specific members of the G<sub>i/o</sub> family remain poorly characterized. This study aimed to compare the AEA and 2-AG-induced activation of various G protein subtypes at CB<sub>1</sub>. Furthermore, we compared the response of human CB<sub>1</sub> (hCB<sub>1</sub>, hCB<sub>1a</sub>, hCB<sub>1b</sub>) and explored species differences by examining rodent receptors (mCB<sub>1</sub>, rCB<sub>1</sub>). <b>Materials and Methods:</b> Activation of individual G protein subtypes in HEK293 cells transiently expressing CB<sub>1</sub> was measured with G protein dissociation assay utilizing TRUPATH biosensors. The performance of the TRUPATH biosensors was evaluated using Z-factor analysis. Pathway potencies and efficacies were analyzed using the operational analysis of bias to determine G protein subtype selectivity for AEA and 2-AG. <b>Results:</b> Initial screening of TRUPATH biosensors performance revealed variable sensitivities within our system. Based on the biosensor performance, the G protein subtypes pursued for further characterization were G<sub>i1</sub>, G<sub>i3</sub>, G<sub>oA</sub>, G<sub>oB</sub>, G<sub>Z</sub>, G<sub>12</sub>, and G<sub>13</sub>. Across all pathways, AEA demonstrated partial agonism, whereas 2-AG exhibited full or high-efficacy agonism. Notably, we provide direct evidence that the hCB<sub>1</sub> receptor couples to G<sub>12</sub> and G<sub>13</sub> proteins. Our findings do not indicate any evidence of G protein subtype selectivity. Similar observations were made across the human receptor variants (hCB<sub>1</sub>, hCB<sub>1a</sub>, hCB<sub>1b</sub>), as well as at mCB<sub>1</sub> and rCB<sub>1</sub>. <b>Discussion:</b> There was no evidence suggesting G protein subtype selectivity for AEA and 2-AG at CB<sub>1</sub>, and this finding remained consistent across human receptor variants and different species.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"425-435"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142380084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Avery G Boals, Daniel M Collier, Julian R Romero, Cecilia J Hillard, Frank Park
{"title":"Lack of Cannabinoid Type 2 Promoter Activity in Normal or Injured Kidneys Using a Cnr2-GFP Reporter Mouse.","authors":"Avery G Boals, Daniel M Collier, Julian R Romero, Cecilia J Hillard, Frank Park","doi":"10.1089/can.2024.0142","DOIUrl":"10.1089/can.2024.0142","url":null,"abstract":"<p><p><b>Introduction:</b> Although cannabinoid type 2 (CB2) receptor activity is known to promote diverse biological functions in the kidney, published data regarding CB2 receptor protein levels and cellular distribution within the kidney is inconsistent. The goal of the present study was to investigate the changes of CB2 in the kidney obtained from mice exposed to various forms of kidney injury using a genetic mouse model expressing green fluorescent protein (GFP) driven by the endogenous cannabinoid receptor 2 (Cnr2) promoter. <b>Materials and Methods:</b> Kidney injury was established in a genetic mouse model expressing green fluorescent protein (GFP) driven by the endogenous Cnr2 promoter. Kidney injury was initiated by either treatment with different chemicals [cisplatin or lipopolysaccharide (LPS)] or by unilateral ureteral obstruction (UUO). Changes in the detection of GFP were used as a proxy for CB2 levels and localization. Histological changes due to the injury stimuli were observed by time-related, morphological changes in kidney cytoarchitecture and blood parameters, such as serum creatinine levels. Cnr2 mRNA levels were detected by reverse transcription coupled to polymerase chain reaction (RT-PCR) while protein changes in the tissue lysates were measured by Western blot analysis. Cellular localization of GFP was detected by fluorescent microscopy. <b>Results:</b> Our data demonstrated that there was no band or a minimally detectable band for GFP using kidney lysates from vehicle- or cisplatin-treated mice. A similar lack of GFP was detected in the UUO kidney versus the contralateral control kidney. This is consistent with the low, albeit detectable levels of Cnr2 mRNA in the kidney samples from control or cisplatin treatment. In frozen kidney sections from vehicle and cisplatin-treated mice, GFP fluorescence was not detectable in tubular epithelia, glomeruli or blood vessels in the cortex. Instead, GFP was detected in rare cells within the interstitial space. A second chemical injury model using LPS found a similar lack of GFP protein levels and an absence of legitimate GFP fluorescence in the main cell types within the kidney. <b>Conclusion:</b> These findings suggest that Cnr2 promoter activity is minimally active in normal or injured kidneys, and that pharmacological manipulation of CB2 receptors may be associated with receptors being expressed in cells recruited to the kidney.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"400-408"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142388262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Caroline A Arout, Hannah M Harris, Noah M Wilson, Kyle F Mastropietro, Amanda M Bozorgi, Gabriela Fazilov, José Tempero, Mariah Walker, Margaret Haney
{"title":"A Preliminary Pharmacokinetic Comparison of Δ-9 Tetrahydrocannabinol and Cannabidiol Extract Versus Oromucosal Spray in Healthy Men and Women.","authors":"Caroline A Arout, Hannah M Harris, Noah M Wilson, Kyle F Mastropietro, Amanda M Bozorgi, Gabriela Fazilov, José Tempero, Mariah Walker, Margaret Haney","doi":"10.1089/can.2023.0249","DOIUrl":"10.1089/can.2023.0249","url":null,"abstract":"<p><p><b>Aim:</b> Few studies have directly compared the bioavailability of different cannabinoid formulations. Our goal was to assess the pharmacokinetic parameters and relative bioavailability of two Δ9-tetrahydrocannabinol:cannabidiol (THC:CBD) formulations: orally administered THC:CBD extract and oromucosally administered nabiximols. <b>Methods:</b> This pilot crossover study counterbalanced (1) 1 mL of orally administered THC:CBD extract (10 mg/mL each of THC and CBD in grapeseed oil) and (2) oromucosally administered nabiximols (four sprays of 2.7 mg THC and 2.5 mg CBD per spray, for a total dose of 10.8 mg THC and 10 mg CBD). Blood samples were obtained pre-dose and at 16 post-dose timepoints over 24 h. Pharmacokinetic parameters were calculated for THC, 11-hydroxy-tetrahydrocannabinol (11-OH-THC), and CBD. <b>Results:</b> Twelve occasional cannabis users (6 male, 6 female) were tested under fasting conditions. <i>C</i><sub>max</sub> for THC and CBD was significantly higher with significantly shorter half-lives for THC:CBD extract versus nabiximols. <i>C</i><sub>max</sub> for nabiximols was significantly higher in males compared with females. Under both treatment conditions, THC and CBD were undetectable by 24 h post-dose, and 11-OH-THC was markedly reduced from its peak. No serious adverse events were reported. <b>Conclusions:</b> Little is known about the comparative pharmacokinetics of commercially available cannabis products. This pilot study shows that the extract formulation achieved higher THC and CBD concentrations within a shorter time frame than nabiximols. These findings may have implications for clinical populations using these formulations therapeutically. Future studies should examine multiple doses in the context of therapeutic outcomes to characterize the relative clinical utility of these formulations.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"457-466"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cannabinoids: Adaptogens or Not?","authors":"Federico Karp, Ignacio E León","doi":"10.1089/can.2024.0108","DOIUrl":"10.1089/can.2024.0108","url":null,"abstract":"<p><p>Since ancient times, humanity has been exploring natural substances with the aim of increasing stress resistance, enhancing biochemical homeostasis, and treating different diseases. In this way, the objective of the present review is to compare the biological effects of cannabinoids (CNBs) with adaptogens, this exploration allows us to consider the controversy if they can be classified together considering the effects on the body. First, the work revises different features of adaptogens such as their chemical structure, ligand-receptors properties, and homeostasis-stress capabilities. Also, this review includes an overview of preclinical and clinical studies of the effect of adaptogens considering a broad spectrum of adverse biological, chemical, and physical factors. Then, the work does a review of the CNBs effects on the body including the principal uses for the treatment of several diseases as neurodegenerative disorders, arthritis, cancer, cardiovascular affections, diabetes, anxiety, chronic pain, among others. In addition, the different characteristics of the specific endocannabinoid system are described explaining the wide CNBs body effects. Finally, this review presents a comparative analysis between CNBs and adaptogens properties, expecting to contribute to understanding if CNBs can be classified as adaptogens.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"389-399"},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143980602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}