Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide risk

Abstract Objective The purpose of this study is to analyze composition of HMS (homemade CBD), NLS (non‐licensed commercial products), and bioequivalent CBD (BES) collected from Chilean patients that voluntary accepted to analyze the “CBD‐substance.” Methods Samples were collected through an open inv...

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Main Authors: Loreto Ríos‐Pohl, Macarena Franco, Daniel Navea, Viviana Venegas, Tomás Cerda
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Epilepsia Open
Subjects:
Online Access:https://doi.org/10.1002/epi4.13081
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author Loreto Ríos‐Pohl
Macarena Franco
Daniel Navea
Viviana Venegas
Tomás Cerda
author_facet Loreto Ríos‐Pohl
Macarena Franco
Daniel Navea
Viviana Venegas
Tomás Cerda
author_sort Loreto Ríos‐Pohl
collection DOAJ
description Abstract Objective The purpose of this study is to analyze composition of HMS (homemade CBD), NLS (non‐licensed commercial products), and bioequivalent CBD (BES) collected from Chilean patients that voluntary accepted to analyze the “CBD‐substance.” Methods Samples were collected through an open invitation for different patients to anonymously and free of charge participate in the analysis of CBD oil. The analysis of the active principle was performed using High‐Resolution Liquid Chromatography (HPLC). Results A total of 35 samples were collected between March 2020 and September 2021, including two BES, six NLS, and 27 HMS products. The BES had an average CBD concentration of 89.15 mg/mL and an average THC concentration of 0.015 mg/mL, which complied with the maximum THC levels required by regulatory authorities (<0.2% THC.). The NLS (six samples) exhibited significant variability in CBD concentrations, ranging from a maximum of 78.5 mg/mL to a minimum of 0.1 mg/mL, with an average of 25.41 mg/mL. The THC concentrations ranged from 0 mg/mL to 2.43 mg/mL with an average of 0.62 mg/mL. The HMS products exhibited even higher variations of CBD concentrations, ranging from 0 to a maximum of 6.6 mg/mL. THC concentrations were even more variable, ranging from 0 mg/mL to 388 mg/mL. Significance The medical community and patients involved should be aware that Hemp products are not pure and/or innocuous. HMS are likely to have high levels of THC and very low CBD, far away from therapeutic doses of CBD. CBD used in epilepsy should be restricted to licensed products, especially in children where THC toxicity is much more harmful. Plain Language Summary The study analyzed three types of CBD (cannabidiol) oils: homemade, non‐licensed, and bioequivalent. Homemade and non‐licensed products showed nonacceptable variance of CBD and THC concentration (tetrahydrocannabinol), in some cases with 0 mgs of CBD and many beyond THC maximum accepted. The THC is another component found in cannabis and is responsible for the neurotoxic effects. Only bioequivalent products showed concentrations of CBD and THC acceptable for epilepsy treatment, therefore are the only products recommended for such purpose.
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spelling doaj-art-5c755aabb64e4851aae3adc1d110f68c2024-12-11T17:10:12ZengWileyEpilepsia Open2470-92392024-12-01962546255210.1002/epi4.13081Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide riskLoreto Ríos‐Pohl0Macarena Franco1Daniel Navea2Viviana Venegas3Tomás Cerda4Epilepsia Clinica Integral de Epilepsia Infanto‐Juvenil Santiago ChilePediatric Neurology Hospital San Pablo Coquimbo ChileEpilepsia Clinica Integral de Epilepsia Infanto‐Juvenil Santiago ChileNeurologia Infantil Clinica Alemana de Santiago SA Santiago ChileMedicina Interna Pontificia Universidad Católica de Chile Santiago ChileAbstract Objective The purpose of this study is to analyze composition of HMS (homemade CBD), NLS (non‐licensed commercial products), and bioequivalent CBD (BES) collected from Chilean patients that voluntary accepted to analyze the “CBD‐substance.” Methods Samples were collected through an open invitation for different patients to anonymously and free of charge participate in the analysis of CBD oil. The analysis of the active principle was performed using High‐Resolution Liquid Chromatography (HPLC). Results A total of 35 samples were collected between March 2020 and September 2021, including two BES, six NLS, and 27 HMS products. The BES had an average CBD concentration of 89.15 mg/mL and an average THC concentration of 0.015 mg/mL, which complied with the maximum THC levels required by regulatory authorities (<0.2% THC.). The NLS (six samples) exhibited significant variability in CBD concentrations, ranging from a maximum of 78.5 mg/mL to a minimum of 0.1 mg/mL, with an average of 25.41 mg/mL. The THC concentrations ranged from 0 mg/mL to 2.43 mg/mL with an average of 0.62 mg/mL. The HMS products exhibited even higher variations of CBD concentrations, ranging from 0 to a maximum of 6.6 mg/mL. THC concentrations were even more variable, ranging from 0 mg/mL to 388 mg/mL. Significance The medical community and patients involved should be aware that Hemp products are not pure and/or innocuous. HMS are likely to have high levels of THC and very low CBD, far away from therapeutic doses of CBD. CBD used in epilepsy should be restricted to licensed products, especially in children where THC toxicity is much more harmful. Plain Language Summary The study analyzed three types of CBD (cannabidiol) oils: homemade, non‐licensed, and bioequivalent. Homemade and non‐licensed products showed nonacceptable variance of CBD and THC concentration (tetrahydrocannabinol), in some cases with 0 mgs of CBD and many beyond THC maximum accepted. The THC is another component found in cannabis and is responsible for the neurotoxic effects. Only bioequivalent products showed concentrations of CBD and THC acceptable for epilepsy treatment, therefore are the only products recommended for such purpose.https://doi.org/10.1002/epi4.13081cannabidiolcannabidiol and epilepsyCBDhomemade CBD
spellingShingle Loreto Ríos‐Pohl
Macarena Franco
Daniel Navea
Viviana Venegas
Tomás Cerda
Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide risk
Epilepsia Open
cannabidiol
cannabidiol and epilepsy
CBD
homemade CBD
title Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide risk
title_full Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide risk
title_fullStr Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide risk
title_full_unstemmed Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide risk
title_short Chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in Chilean patients. An underestimated worldwide risk
title_sort chemical analysis and concentrations of cannabidiol substances used for refractory epilepsy in chilean patients an underestimated worldwide risk
topic cannabidiol
cannabidiol and epilepsy
CBD
homemade CBD
url https://doi.org/10.1002/epi4.13081
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