{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T04:53:42Z","timestamp":1789188822020,"version":"build-2803163510"},"reference-count":73,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2024,2,19]],"date-time":"2024-02-19T00:00:00Z","timestamp":1708300800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Cannabis &amp; Cannabinoid Research"],"published-print":{"date-parts":[[2024,4,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>\n                      \u0394\n                      <jats:sup>9<\/jats:sup>\n                      -tetrahydrocannabinol (THC), the primary intoxicating compound in cannabis, has been tested extensively in controlled administration human studies. Some studies require a high THC dose that may induce adverse events (AEs), such as those testing novel treatments for cannabinoid overdose. Although there are ethical concerns related to administering high THC doses, there is no systematic analysis on studies utilizing these doses. In this review, we examine studies that administered oral THC doses \u226530\u2009mg (\u201chigh-dose THC\u201d), focusing on reported tolerability, subjective effects, and pharmacokinetics (PK), with the objective to inform the design of future studies.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A comprehensive PubMed search was performed to identify studies meeting pre-specified criteria.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Our search identified 27 publications from 17 high-dose oral THC laboratory studies, with single doses up to 90\u2009mg and multiple doses up to 210\u2009mg per day. The maximum plasma THC concentration (C\n                      <jats:sub>max<\/jats:sub>\n                      ) appeared to increase in a dose-proportional manner over this dose range. All high-dose THC studies enrolled participants with previous cannabis experience, although current use ranged from nonusers to regular cannabis users. High-dose THC was generally well tolerated with transient mild to moderate AE, including nausea and vomiting, anxiety, paranoia, and sedation. There were occasional participant withdrawals due to AEs, but there were no serious AE. Participants with frequent cannabis use tolerated high-dose THC best.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Although based on limited data, THC was generally adequately tolerated with single oral doses of at least 50\u2009mg in a controlled laboratory setting in healthy participants with past cannabis experience.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/can.2023.0209","type":"journal-article","created":{"date-parts":[[2024,2,20]],"date-time":"2024-02-20T17:13:50Z","timestamp":1708449230000},"page":"437-448","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Tolerability of High-Dose Oral \u0394\n                    <sup>9<\/sup>\n                    -THC: Implications for Human Laboratory Study Design"],"prefix":"10.1177","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4283-6087","authenticated-orcid":false,"given":"Jan","family":"Rozanc","sequence":"first","affiliation":[{"name":"Verdient Science LLC, Denver, Colorado, USA."},{"name":"Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Maribor, Slovenia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3453-9744","authenticated-orcid":false,"given":"Linda E.","family":"Klumpers","sequence":"additional","affiliation":[{"name":"Verdient Science LLC, Denver, Colorado, USA."},{"name":"Larner College of Medicine, University of Vermont, Burlington, Vermont, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2137-4645","authenticated-orcid":false,"given":"Marilyn A.","family":"Huestis","sequence":"additional","affiliation":[{"name":"Institute of Emerging Health Professions, Thomas Jefferson University, Philadelphia, Pennsylvania, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Tagen","sequence":"additional","affiliation":[{"name":"Verdient Science LLC, Denver, Colorado, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,2,19]]},"reference":[{"key":"e_1_3_5_2_2","unstructured":"United Nations Office on Drugs and Crime. 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