5% off
Spooky savings! Get your MMJ Card now Get 5% off with code BOO5!👻

Research library

What science knows about medical cannabis

166,605 studies from Semantic Scholar, OpenAlex and PubMed, mapped to the body and to conditions. Pick an organ, a condition or a cannabinoid and see what has been studied.

166,605
studies
59,458
in people
6,447
clinical trials
171
conditions studied
166,605 studies

Studies by part of the body

Tap an organ to see how many studies looked at it, what they studied and the papers themselves.

93kBrain & mind15kImmune system15kSpine & nerves10kMetabolism8.7kReproductive

Tap an organ

See how many studies looked at it, which conditions and cannabinoids they covered, and read the papers.

How cannabis research grew

57% of these studies came out in the last ten years. 1,321 have no publication year and are not on the chart.

05k10k15k1960198020002020123456
  1. 1964THC is isolated and identified (Gaoni and Mechoulam)
  2. 1985FDA approves dronabinol (Marinol) for chemotherapy nausea
  3. 1988The brain’s cannabinoid receptor (CB1) is discovered
  4. 1992Anandamide, the body’s own cannabinoid, is found
  5. 1996California becomes the first US state to allow medical cannabis
  6. 2018FDA approves Epidiolex, the first cannabis-derived prescription drug

Studies by condition

Conditions with a Dr. Weedy guide link to it. The rest have studies behind them but no guide from us yet.

Substance Use28,253
Substance-Related Disorders 959 clinical trials in people · 976 reviews
No guide yet
Substance-Related Disorders14,314
593 clinical trials in people · 403 reviews
No guide yet
Pain Management13,952
361 clinical trials in people · 593 reviews
No guide yet
Cancer7,568
172 clinical trials in people · 227 reviews
Read our guide →
Psychosis7,016
159 clinical trials in people · 334 reviews
Read our guide →
Depression6,203
129 clinical trials in people · 197 reviews
Read our guide →
Anxiety5,691
185 clinical trials in people · 244 reviews
Read our guide →
Epilepsy4,071
110 clinical trials in people · 207 reviews
Read our guide →
Chronic Pain3,467
Pain Management 68 clinical trials in people · 260 reviews
Read our guide →
HIV2,708
103 clinical trials in people · 56 reviews
Read our guide →

Other topics researchers study

Not conditions, but often the subject of cannabis research: how people use it, the plant itself, how it acts in the body.

How strong is the evidence?

For doctors and careful readers: what kind of studies stand behind the numbers above, for the filters you chose.

Study design

Stronger designs at the top. Reviews pool earlier studies; trials test cannabis against a control.

Who was studied

What the studies found about cannabis

Among 58,778 studies that tested its effect on health; 53,434 more looked at other questions, such as how many people use it.

Cannabinoids studied

Cannabis and medicines studied

The studies

166,605 studies match. Newest first.

  1. Boosting the solubility of cannabidiol via cyclodextrin-based supramolecular deep eutectic solvents: A green solubilization strategy for food applications

    Colloids and Surfaces A: Physicochemical and Engineering Aspects · 2027

  2. Gastroduodenal Disorders

    Gastroenterology · 2026 · cited 333 times

    Found harmNarrative reviewStomach & gutSpine & nerves
  3. [New psychoactive substances].

    Ugeskrift for laeger · 2026 · cited 72 times

    Narrative reviewPeople: observationalBrain & mindSpine & nerves
  4. Therapeutic Use of Cannabis and Cannabinoids: A Review.

    JAMA · 2026 · cited 62 times

    Mixed resultsNarrative reviewPeople: clinical studiesBrain & mindStomach & gutHeart & blood vessels
  5. Glucagon-like peptide-1 receptor agonists and risk of substance use disorders among US veterans with type 2 diabetes: cohort study.

    BMJ (Clinical research ed.) · 2026 · cited 41 times

    Found a benefitCohort studyPeople: observationalBrain & mindPancreas & metabolism524,817 participants
  6. Prevalence of Nicotine Pouch Use Among Youth and Adults in Great Britain-Analysis of Cross-Sectional, Nationally Representative Surveys.

    Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026 · cited 35 times

    Cross-sectional studyPeople: population studiesBrain & mind12,247 participants
  7. The efficacy and safety of cannabinoids for the treatment of mental disorders and substance use disorders: a systematic review and meta-analysis.

    The lancet. Psychiatry · 2026 · cited 31 times

    Mixed resultsMeta-analysisPeople: clinical studiesBrain & mind2,477 participants
  8. Dual-configuration arabinogalactan-II synergizes with rhamnogalacturonan-I in Lycium barbarum pectin to construct an intestinal anti-inflammatory glycan scaffold.

    Carbohydrate polymers · 2026 · cited 31 times

    Found a benefitAnimal studyCells & moleculesStomach & gut
  9. Guidelines for antenatal and preoperative care in cesarean delivery: Enhanced Recovery After Surgery Society recommendations (part 1)-2025 update.

    American journal of obstetrics and gynecology · 2026 · cited 29 times

    Clinical guidelinePeople: clinical studiesReproductive system
  10. Global burden of amphetamine, cannabis, cocaine and opioid use in 204 countries, 1990-2023: a Global Burden of Disease Study.

    Nature medicine · 2026 · cited 25 times

    Found harmSystematic reviewPeople: clinical studiesBrain & mind
  11. Cannabis and Mental Health: A Review.

    JAMA internal medicine · 2026 · cited 22 times

    Found harmNarrative reviewPeople: observationalBrain & mind
  12. Data Resource Profile: The Japan COVID-19 and Society Internet Survey (JACSIS)

    International Journal of Epidemiology · 2026 · cited 21 times

    Cohort studyBrain & mindImmune system & blood74,003 participants
  13. Psilocybin Outside the Clinic: Public Health Challenges of Increasing Publicity, Accessibility, and Use.

    JAMA psychiatry · 2026 · cited 19 times

    Narrative reviewPeople: observational
  14. Hemp seed as an emerging source of nutritious functional ingredients.

    Critical reviews in food science and nutrition · 2026 · cited 19 times

    Found a benefitNarrative reviewPeople: observational
  15. Single-cell spatiotemporal dissection of the human maternal-fetal interface

    Nature · 2026 · cited 17 times

    Found a benefitAnimal studyCells & moleculesHeart & blood vesselsReproductive system
  16. A Broad Overview of the Multifaceted Royal Jelly and Its Applicability in Health and Performance

    Current Topics in Nutraceutical Research · 2026 · cited 16 times

    Found a benefitNarrative review
  17. Update of the statement on safety of cannabidiol as a novel food.

    EFSA journal. European Food Safety Authority · 2026 · cited 15 times

    Found harmSystematic reviewLiver
  18. Inter-individual variability of neurotransmitter receptor and transporter density in the human brain.

    Brain structure & function · 2026 · cited 15 times

    Animal studyPeople: observationalBrain & mind
  19. Assessing the Role of Cannabis in Managing Spasticity in Multiple Sclerosis: A Systematic Review and Meta-Analysis.

    Clinical therapeutics · 2026 · cited 15 times

    Found a benefitMeta-analysisPeople: clinical studiesBrain & mindBones, joints & musclesSpine & nerves2,544 participants
  20. From Polyphenols to Prodrugs: Bridging the Blood-Brain Barrier with Nanomedicine and Neurotherapeutics.

    International journal of molecular sciences · 2026 · cited 14 times

    Narrative reviewPeople: observationalBrain & mind

About this library

The library collects published research on cannabis and cannabinoids from Semantic Scholar, OpenAlex and PubMed. A paper found in several databases is counted once. The library is updated every night. Retracted papers are left out.

One study can touch several organs and conditions. This page summarises research. It is not medical advice: talk to a doctor before using cannabis for a health condition.

Security check required

Our security system needs to verify your connection. Please reload the page and complete the quick verification — your details are safe and nothing was lost.

scroll to top