PMID- 36946485 OWN - NLM STAT- MEDLINE DCOM- 20230911 LR - 20240302 IS - 1875-6190 (Electronic) IS - 1570-159X (Print) IS - 1570-159X (Linking) VI - 21 IP - 11 DP - 2023 TI - Update on Cannabidiol Clinical Toxicity and Adverse Effects: A Systematic Review. PG - 2323-2342 LID - 10.2174/1570159X21666230322143401 [doi] AB - BACKGROUND: Compelling evidence from preclinical and clinical studies supports the therapeutic role of cannabidiol (CBD) in several medical disorders. We reviewed the scientific evidence on CBD-related toxicity and adverse events (AEs) in 2019, at the beginning of the spike in clinical studies involving CBD. However, CBD safety remained uncertain. OBJECTIVE: With the benefit of hindsight, we aimed to provide an update on CBD-related toxicity and AEs in humans. METHODS: A systematic literature search was conducted following PRISMA guidelines. PubMed, Cochrane, and Embase were accessed in October 2022 to identify clinical studies mentioning CBDrelated toxicity/AEs from February 2019 to September 2022. Study design, population characteristics, CBD doses, treatment duration, co-medications, and AEs were compiled. RESULTS: A total of 51 reports were included. Most studies investigated CBD efficacy and safety in neurological conditions, such as treatment-resistant epilepsies, although a growing number of studies are focusing on specific psychopathological conditions, such as substance use disorders, chronic psychosis, and anxiety. Most studies report mild or moderate severity of AEs. The most common AEs are diarrhea, somnolence, sedation, and upper respiratory disturbances. Few serious AEs have been reported, especially when CBD is co-administered with other classes of drugs, such as clobazam and valproate. CONCLUSION: Clinical data suggest that CBD is well tolerated and associated with few serious AEs at therapeutic doses both in children and adults. However, interactions with other medications should be monitored carefully. Additional data are needed to investigate CBD's long-term efficacy and safety, and CBD use in medical conditions other than epilepsy syndromes. CI - Copyright(c) Bentham Science Publishers; For any queries, please email at epub@benthamscience.net. FAU - Madeo, Graziella AU - Madeo G AD - Clinical Center of Neurology and Psychiatry, Brain&Care Group, Rimini, Italy. FAU - Kapoor, Ashita AU - Kapoor A AD - Unit of Forensic Toxicology, Section of Legal Medicine, Department of Biomedical Sciences and Public Health, Marche Polytechnic University, Ancona, Italy. FAU - Giorgetti, Raffaele AU - Giorgetti R AD - Unit of Forensic Toxicology, Section of Legal Medicine, Department of Biomedical Sciences and Public Health, Marche Polytechnic University, Ancona, Italy. FAU - Busardo, Francesco Paolo AU - Busardo FP AD - Unit of Forensic Toxicology, Section of Legal Medicine, Department of Biomedical Sciences and Public Health, Marche Polytechnic University, Ancona, Italy. FAU - Carlier, Jeremy AU - Carlier J AD - Unit of Forensic Toxicology, Section of Legal Medicine, Department of Biomedical Sciences and Public Health, Marche Polytechnic University, Ancona, Italy. LA - eng PT - Journal Article PT - Systematic Review PL - United Arab Emirates TA - Curr Neuropharmacol JT - Current neuropharmacology JID - 101157239 RN - 19GBJ60SN5 (Cannabidiol) RN - 0 (Anticonvulsants) SB - IM MH - Child MH - Adult MH - Humans MH - *Cannabidiol/adverse effects MH - *Epilepsy/drug therapy MH - Anxiety MH - Anticonvulsants/adverse effects PMC - PMC10556379 OTO - NOTNLM OT - Cannabidiol OT - adverse event OT - anxiety OT - clinical study OT - psychosis OT - toxicity OT - treatment-resistant epilepsy COIS- The authors declare no conflict of interest, financial or otherwise. EDAT- 2023/03/23 06:00 MHDA- 2023/09/11 06:42 PMCR- 2024/03/01 CRDT- 2023/03/22 08:03 PHST- 2022/12/04 00:00 [received] PHST- 2023/01/15 00:00 [revised] PHST- 2023/01/16 00:00 [accepted] PHST- 2023/09/11 06:42 [medline] PHST- 2023/03/23 06:00 [pubmed] PHST- 2023/03/22 08:03 [entrez] PHST- 2024/03/01 00:00 [pmc-release] AID - CN-EPUB-130324 [pii] AID - CN-21-2323 [pii] AID - 10.2174/1570159X21666230322143401 [doi] PST - ppublish SO - Curr Neuropharmacol. 2023;21(11):2323-2342. doi: 10.2174/1570159X21666230322143401.