Assessment of Orally Administered Δ9-Tetrahydrocannabinol When Coadministered With Cannabidiol on Δ9-Tetrahydrocannabinol. Pharmacokinetics and Pharmacodynamics in Healthy Adults : A Randomized Clinical Trial C. Austin Zamarripa, PhD; Tory R. Spindle, PhD; Renuka Surujunarain; Elise M. Weerts, PhD; Sumit Bansal, PhD; Jashvant D. Unadkat, PhD; Mary F. Paine, PhD; Ryan Vandrey, PhD Jama Network Open, 2023, 6, (2), e2254752, 1-15. doi : 10.1001/jamanetworkopen.2022.54752 Key Points Question : Are there acute pharmacokinetic or pharmacodynamic differences between oral ingestion of a Δ9-tetrahydrocannabinol (Δ9-THC)- dominant cannabis extract compared with a cannabidiol (CBD)-dominant extract at the same Δ9-THC dose (20 mg) in healthy adults who use cannabis infrequently? Findings : In this randomized clinical trial including 18 [...]
Lire la suiteFluorinated Cannabidiol Derivatives: Enhancement of Activity in Mice Models Predictive of Anxiolytic, Antidepressant and Antipsychotic Effects Aviva Breuer, Christeene G. Haj, Manoela V. Fogaça, Felipe V. Gomes, Nicole Rodrigues Silva, João Francisco Pedrazzi, Elaine A. Del Bel, Jaime C. Hallak, José A. Crippa, Antonio W. Zuardi, Raphael Mechoulam, Francisco S. Guimarães PLOS One, 2016, 11, (7), e0158779, 1-19. Doi : 10.1371/journal.pone.0158779 Abstract Cannabidiol (CBD) is a major Cannabis sativa constituent, which does not cause the typical marijuana psychoactivity. However, it has been shown to be active in a numerous pharma- cological assays, including mice tests for anxiety, obsessive-compulsive disorder, depres- sion and schizophrenia. In human [...]
Lire la suiteCannabis containing equivalent concentrations of delta‐9‐tetrahydrocannabinol (THC) and cannabidiol (CBD) induces less state anxiety than THC‐dominant cannabis Nadia R. P. W. Hutten, T. R. Arkell, F. Vinckenbosch, J. Schepers, R. C. Kevin, E. L. Theunissen, K. P. C. Kuypers, I. S. McGregor, J. G. Ramaekers Psychopharmacology, 2022, 239, 3731–3741 Doi : 10.1007/s00213-022-06248-9 Abstract Rationale : Delta-9-tetrahydrocannabinol (THC), an active component of cannabis, can cause anxiety in some users during intoxication. Cannabidiol (CBD), another constituent of cannabis, has anxiolytic properties suggesting that cannabis products containing CBD in addition to THC may produce less anxiety than THC-only products. Findings to date around this issue have been inconclusive and [...]
Lire la suitePharmacologie du Cannabidiol : Points de vigilance, conséquences et risques chez l’homme Note rédigée par l’Association Française des centres d’Addictovigilance : Pr Joëlle MICALLEF, Dr Anne BATISSE, Dr Bruno REVOL, décembre 2021 Thérapies, 2022, 77, (5), 585-590. Doi : 10.1016/j.therap.2022.02.001 Contexte Le Cannabidiol (CBD) est l’un des principaux phytocannabinoïdes présent dans Cannabis sativa, avec le THC. A ce jour, un seul produit contenant uniquement du CBD (nom de ce médicament Epidyolex®) est disponible sur le marché français, son Autorisation de Mise sur le Marché (AMM) lui conférant une indication médicale en association au clobazam dans le traitement des crises d’épilepsie associées au syndrome de Lennox-Gastaut ou au [...]
Lire la suiteCBD FOR PAIN : WHAT DOES THE SCIENCE SAY ? A new book by three distinguished scientists reviews the current status of CBD as a treatment for acute and chronic illness. By Linda A. Parker, Erin M. Rock, and Raphael Mechoulam on October 04, 2022 Excerpted from CBD: What Does the Science Say ? by Linda A. Parker, Erin M. Rock, and Raphael Mechoulam, published by MIT Press (2022, 309 pp.). A large proportion of medicinal cannabis patients are using cannabis to treat pain syndromes, particularly for chronic pain alleviation. Cannabis use for unmanageable pain has been shown to reduce the dose of opiates [...]
Lire la suiteCannabidiol as an add-on therapy to overcome the slow-onset and, possibly, resistance to antidepressant treatment : involvement of NAPE-PLD in the medial prefrontal cortex. Franciele F. Scarante, Vinícius D. Lopes, Eduardo J. Fusse, Maria A. Vicente, Melissa R. Araújo, Davi S. Scomparin, Rafael P. Aguiar, Francisco S. Guimarães, Viviani Nardinid, Carlos Arterio Sorgid, Lucia H. Faccioli, RhD, PhDd, Jaime E. C. Hallak, MD, PhDe,f; Samia Joca, Kenneth Mackie, Antonio Waldo Zuardi, José Alexandre S. Crippa, Alline C. Campos. bioRxiv preprint, April 26, 2021. doi : 10.1101/2021.04.23.441143 Highlights ● In mice, cannabidiol (CBD), but not escitalopram, induced a fast-onset anti-stress action. ● Combinations of sub-effective doses [...]
Lire la suiteThe Effects of Cannabinoids on Sleep Bhanu Prakash Kolla, Lisa Hayes, Chaun Cox, Lindy Eatwell, Mark Deyo-Svendsen , and Meghna P. Mansukhani Journal of Primary Care & Community Health, 2022, Volume 13, 1–9. Doi : 10.1177/21501319221081277 Abstract The use of cannabis products to help with sleep and various other medical conditions by the public has increased significantly in recent years. Withdrawal from cannabinoids can lead to sleep disturbance. Here, we describe a patient who developed significant insomnia leading to worsening anxiety, mood, and suicidal ideation in the setting of medical cannabis withdrawal, prompting presentation to the Emergency Department and inpatient admission. There is a limited [...]
Lire la suiteCannabidiol (CBD) in the Self-Treatment of Depression-Exploratory Study and a New Phenomenon of Concern for Psychiatrists Gniewko Wieckiewicz, Iga Stokłosa, Maciej Stokłosa, Piotr Gorczyca and Robert Pudlo Frontiers in Psychiatry, March 2022 | Volume 13 | Article 837946 doi : 10.3389/fpsyt.2022.837946 Cannabis sativa, whose flowers are also known as marijuana or marihuana, is a recreational plant that contains many chemicals that are constantly being studied by scientists around the world. One of these substances is cannabidiol (CBD), which has gained widespread popularity on the internet as a cure for mental health problems, leading many people to use CBD to self-treat depression and anxiety. This [...]
Lire la suiteExpérimentation clinico-pharmacologique de la prescription de CBD en clinique addictologique Projet CBD Thérapeutique, GRECC, version 3-5 Dr Christian SUEUR, mars 2022 112 pages Aujourd’hui, il n’est plus tabou au plan international de penser et d’appliquer des prescriptions de cannabinoïdes en clinique psychiatrique et addictologique.[1] En France, lors de la première séance du C.S.S.T. « Évaluation de la pertinence et de la faisabilité de la mise à disposition du cannabis en France », le 12 décembre 2018, c’est « le membre psychiatre » du C.S.S.T., le docteur George Brousse lui-même, qui souhaitait d’emblée « que soit mentionnée l’utilisation potentielle du CBD dans les troubles psychiatriques et de l’addiction, tout en précisant [...]
Lire la suiteAssessing the treatment of cannabidiolic acid methyl ester: a stable synthetic analogue of cannabidiolic acid on c‑Fos and NeuN expression in the hypothalamus of rats Eric Murillo‑Rodríguez, Diana Millán‑Aldaco, Gloria Arankowsky‑Sandoval, Tetsuya Yamamoto, Roger G. Pertwee, Linda Parker and Raphael Mechoulam Abstract Background : Cannabidiol (CBD), the non-psychotropic compound from Cannabis sativa, shows positive results on controlling several health disturbances; however, comparable data regarding additional chemical from C. sativa, such as cannabidiolic acid (CBDA), is scarce due to its instability. To address this limitation, a stable CBDA analogue, CBDA methyl ester (HU-580), was synthetized and showed CBDA-like effects. Recently, we described that HU-580 increased [...]
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