Tetrahydrocannabinol

Tetrahydrocannabinol

Best for

Reduce everyday pain intensity

Likely strong benefit for 8 weeks · 2 meta-analyses , n=294

10 papers · 10 claims · 25 outcomes scored · 4 positive

Outcomes

What tetrahydrocannabinol actually does, by outcome

Each row is one outcome with effect size, evidence base, the dose that worked in trials, and time to first effect. Magnitude tiers come from native-unit MCID where available, Cohen's d otherwise.

Outcome Effect Evidence Dose Weeks Rank
Improve everyday quality of life Large effect, needs confirmation
large
2 meta-analyses n=2.5k Meta-analyzed 8 wk #6/61
Reduce everyday pain intensity Likely strong benefit
large
4 meta-analyses n=294 Meta-analyzed 8 wk #7/55
Ease nerve pain and sensitivity Large effect, needs confirmation
large
1 RCT n=16 16–28 mg #1/5
Ease neuropathy pain and numbness Likely real but unnoticeable
trivial
1 meta-analysis n=2.5k Meta-analyzed #4/7
Ease chemo stomach side effects Probably doesn't help
large
1 meta-analysis n=1.0k Meta-analyzed
Improve overall sleep quality Probably doesn't help
trivial
1 meta-analysis n=2.5k Meta-analyzed
Lower day-to-day anxiety Not enough research
2 RCTs n=41 1.22–4.4 mg 8 wk
Ease anxiety in older adults Not enough research
2 RCTs n=41 1.22–4.4 mg 8 wk
Reduce pre-competition anxiety Not enough research
2 RCTs n=41 1.22–4.4 mg 8 wk
Feel full longer and crave less Not enough research
2 RCTs n=40 50.6 mg

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