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6 papers
This systematic review looked at human studies of cannabidiol (CBD) for anxiety up to June 2019. Eight studies were included (6 small randomized controlled trials, 1 case series, and 1 case report). The studies tested CBD for anxiety in healthy volunteers, generalized anxiety disorder, social anxiety disorder, and PTSD-related anxiety.…
This systematic review looked at clinical studies of ketamine for people whose anxiety did not get better with standard treatments. The authors found early signs that single doses of ketamine can reduce anxiety quickly, but the benefits are often temporary (typically lasting days to about a week). The existing studies…
This review looked at animal and human studies of cannabidiol (CBD) for anxiety. In animals, CBD often reduced anxiety-like behaviors at low or medium doses but sometimes increased anxiety at high doses. Small human studies and public-speaking tests suggest CBD might reduce anxiety in healthy people and in social anxiety…
This review looked at human studies up to July 2020 about THC (the main psychoactive part of Cannabis) and its effects on fear-related memories and anxiety. The authors report that low doses of THC can speed up extinction of aversive memories and lower anxiety in people, and that combining THC…
Recent controlled studies find that THC often raises short-term feelings of anxiety in lab-tested adults, especially at higher doses. Results about CBD are mixed: many newer studies report no clear anxiety-reducing effects in healthy people, and findings in clinical groups are inconsistent. Studies differ in dose, how cannabis was given,…
This review looks at what is known about using cannabis chemicals to treat anxiety. It says CBD is suggested to reduce anxiety in some studies, while THC can either reduce or increase anxiety depending on dose, how it is taken, and individual factors. The authors conclude that there is not…
