Cannabinoids concentration variability in cannabis olive oil galenic preparations

Objectives Knowledge of the exact concentration of active compounds in galenic preparations is crucial to be able to ensure their quality and to properly administer the prescribed dose. Currently, the need for titration of extracts is still debated. Considering this, together with the absence of a s...

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Bibliographic Details
Published in:Journal of pharmacy and pharmacology 2018-01, Vol.70 (1), p.143-149
Main Authors: Carcieri, Chiara, Tomasello, Cristina, Simiele, Marco, De Nicolò, Amedeo, Avataneo, Valeria, Canzoneri, Luca, Cusato, Jessica, Di Perri, Giovanni, D'Avolio, Antonio
Format: Article
Language:English
Subjects:
Bediol
Bedrocan
Bedrolite
Cannabinoids
Cannabinoids - chemistry
Cannabinoids - isolation & purification
Cannabis
Cannabis - chemistry
cannabis olive oil
Chromatography, Liquid
LC‐MS
Liquid chromatography
Mass spectrometry
Mass spectroscopy
Oils & fats
Olive oil
Olive Oil - chemistry
Plant Extracts - chemistry
Tandem Mass Spectrometry
Tetrahydrocannabinol
Titration
Variability
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Summary:Objectives Knowledge of the exact concentration of active compounds in galenic preparations is crucial to be able to ensure their quality and to properly administer the prescribed dose. Currently, the need for titration of extracts is still debated. Considering this, together with the absence of a standard preparation method, the aim of this study was to evaluate cannabinoids concentrations variability in galenic olive oil extracts, to evaluate the interlot and interlaboratory variability in the extraction yield and in the preparation composition. Methods Two hundred and one extracts (123 (61.2%) from Bedrocan®, 54 (26.9%) from Bediol®, 11 (5.5%) from Bedrolite®, and 13 (6.5%) from mixed preparations) were analysed by liquid chromatography coupled with tandem mass spectrometry, quantifying cannabinoids (THC, CBD, THCA, CBDA and CBN) concentrations. Key findings The RSD% of THC and CBD concentrations resulted higher than 50%. Specifically for Bedrocan®, Bediol®, Bedrolite® (5 g/50 ml), these were THC 82%, THC 53% and CBD 91%, THC 58% and CBD 59%, respectively. The median extraction yields were greater than 75% for all preparations. Conclusions Our results highlighted a wide variability in THC and CBD concentrations that justify the need for titration and opens further questions about other pharmaceutical preparations without regulatory indication for this procedure.
ISSN:0022-3573
2042-7158
DOI:10.1111/jphp.12845