Cannabidiol and Bipolar

Studies and peer-reviewed research into the effects of CBD and Bipolar

Cannabinoids in bipolar affective disorder: A review and discussion of their therapeutic potentialFrom the abstract:
Bipolar affective disorder is often poorly controlled by prescribed drugs. Cannabis use is common in patients with this disorder and anecdotal reports suggest that some patients take it to alleviate symptoms of both mania and depression. We undertook a literature review of cannabis use by patients with bipolar disorder and of the neuropharmacological properties of cannabinoids suggesting possible therapeutic effects in this condition. No systematic studies of cannabinoids in bipolar disorder were found to exist, although some patients claim that cannabis relieves symptoms of mania and/or depression. The cannabinoids Delta(9)-tetrahydrocannabinol (THC) and cannabidiol (CBD) may exert sedative, hypnotic, anxiolytic, antidepressant, antipsychotic and anticonvulsant effects. Pure synthetic cannabinoids, such as dronabinol and nabilone and specific plant extracts containing THC, CBD, or a mixture of the two in known concentrations, are available and can be delivered sublingually. Controlled trials of these cannabinoids as adjunctive medication in bipolar disorder are now indicated.
CBD as an Intervention for Addictive BehaviorsFrom the abstract:
A limited number of preclinical studies suggest that CBD may have therapeutic properties on opioid, cocaine, and psychostimulant addiction, and some preliminary data suggest that it may be beneficial in cannabis and tobacco addiction in humans. Further studies are clearly necessary to fully evaluate the potential of CBD as an intervention for addictive disorders.
Cannabidiol was ineffective for manic episode of bipolar affective disorderFrom the abstract:
The pharmacological profile of cannabidiol (CBD) has several characteristics in common with drugs known to benefit bipolar affective disorder (BAD), leading to the hypothesis that CBD may have therapeutic properties in BAD. Therefore, the aim of the present report was to directly investigate for the first time the efficacy and safety of CBD in two patients with BAD. Both patients met DSM IV criteria for bipolar I disorder experiencing a manic episode without comorbid conditions. This was an inpatient study, and the efficacy, tolerability and side effects were assessed. Both patients received placebo for the initial 5 days and CBD from the 6th to 30th day (initial oral dose of 600 mg reaching 1200 mg/ day). From the 6th to the 20th day, the first patient (a 34-year-old woman) received adjunctive olanzapine (oral dose of 10-15 mg). On day 31, CBD treatment was discontinued and replaced by placebo for 5 days. The first patient showed symptoms improvement while on olanzapine plus CBD, but showed no additional improvement during CBD monotherapy. The second patient (a 36-year-old woman) had no symptoms improvement with any dose of CBD during the trial. Both patients tolerated CBD very well and no side-effects were reported. These preliminary data suggest that CBD may not be effective for the manic episode of BAD.

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