Conclusion: There is moderate-certainty evidence that oromucosal nabiximols and THC are ineffective in relieving moderate-to-severe opioid-refractory cancer pain. There is low-certainty evidence that nabilone is ineffective in reducing pain associated with (radio-) chemotherapy in people with head and neck cancer and non-small cell lung cancer. There is low-certainty evidence that a single dose of synthetic THC analogues is not superior to a single low-dose morphine equivalent in reducing moderate-to-severe cancer pain. There is low-certainty evidence that CBD does not add value to specialist palliative c
PubMed 37283486 ↗CBD Oil
People mainly take CBD Oil for anxiety, sleep, mood. Based on 73 first-hand reports and 9 meta-analyses & systematic reviews in the medical literature. Ranked #181 of 1,974 overall.
Of reports that state an outcome, 65% are positive.
What CBD Oil does, according to users
Of the people who reported each effect, the share who said it got better.
2 more with fewer than 3 reports
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: Altogether, insufficient evidence exists on the efficacy and safety of CBD oil in schizophrenia patients. More RCTs, comparing CBD oil with placebo and other antipsychotics are warranted.
PubMed 32599446 ↗Conclusion: CBD is considered safe for treating canine OA. CBD may reduce pain scores, but the evidence is very uncertain to conclude its clinical efficacy. High-quality clinical trials are needed to further evaluate the roles of CBD in canine OA.
PubMed 37781283 ↗Conclusion: Drug-drug interactions with cannabinoids are likely amongst prescription medications that use common CYP450 systems. Our findings highlight the need for healthcare providers and patients/care-givers to openly communicate about cannabis/cannabinoid use to prevent unintended adverse events. To that end, we have developed a free online tool (www.CANN-DIR.psu.edu) to help identify potential cannabinoid drug-drug interactions with prescription medications.
PubMed 38868665 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“CBD oil at least helps a bit with sleep”
“CBD oil”
“CBD-oil (didn't really notice much)”
“I have been controlling the seizures with CBD oil.”
“Within 20 minutes I could feel a softness gradually washing over my brain. It was incredibly gentle and soft as if the CBD was telling me everything was going to be okay.”
Top discussions (5)
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Other options for anxiety
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate