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Study breakdown

Historical review traces cannabis use for gut problems from ancient medicine to modern science

ReviewLow evidence
The takeaway

Cannabis has been used for gastrointestinal symptoms across cultures for millennia, and modern research on the endocannabinoid system provides biological rationale for its anti-inflammatory and motility-enhancing effects in the gut.

Gastroenterologists, medical historians, cannabinoid researchers, and patients with GI conditions interested in cannabis.

Cannabis used for GI symptoms across cultures for millennia; endocannabinoid system now provides biological basis

What the researchers found

Historical records from multiple cultures document cannabis use for nausea, vomiting, diarrhea, and inflammatory bowel conditions. Modern research confirms endocannabinoid system involvement in gut function, with THC:CBD preparations showing promise for inflammation and motility.

Why it matters

Understanding the historical use of cannabis for gut conditions provides context for modern research directions and highlights that this is not a new therapeutic concept but one that was interrupted by prohibition.

The numbers in context

Reviews evidence from multiple cultural traditions spanning thousands of years. Discusses the endocannabinoidome as an expanded system beyond classical endocannabinoid signaling in gastrointestinal modulation.

How the study worked

Narrative review combining ethnomedicinal history of cannabis for gastrointestinal conditions with modern pharmacological understanding of the endocannabinoid system and expanded endocannabinoidome in gut function.

What this study cannot tell us

Narrative review without systematic methodology. Historical accounts lack the rigor of modern clinical evidence. Modern evidence for cannabinoids in GI conditions remains primarily preclinical. Optimal formulations and dosing for GI conditions are unknown.

How to read the evidence

Narrative review combining historical accounts with modern pharmacology. Provides context but not clinical evidence.

When this study was published

Published 2023.

The bigger picture

The 1937 Marijuana Tax Act effectively halted cannabis research for decades. Reconnecting historical use with modern molecular understanding of the endocannabinoid system could accelerate development of cannabinoid-based gastrointestinal therapies.

Questions still open

  • Which specific gastrointestinal conditions are most likely to benefit from cannabinoid therapies? Can the expanded endocannabinoidome be targeted more precisely than whole-plant cannabis?

Common questions

Has cannabis always been used for stomach problems?
Yes. Historical records from numerous cultures document cannabis use for nausea, vomiting, diarrhea, and abdominal pain. These traditional uses were disrupted by global cannabis prohibition in the 20th century but are now being revisited through the lens of modern pharmacology.
How does the endocannabinoid system affect the gut?
The endocannabinoid system is active throughout the gastrointestinal tract, influencing motility, inflammation, pain signaling, and secretion. Cannabinoid receptors (CB1 and CB2) are present in gut tissue, and the expanded endocannabinoidome includes additional lipid mediators that modulate digestive function.

Read the original research

Pharmacohistory of Cannabis Use-A New Possibility in Future Drug Development for Gastrointestinal Diseases.

International journal of molecular sciences, 24(19)

Citation

Thapa, Dinesh; Warne, Leon N; Falasca, Marco. (2023). Pharmacohistory of Cannabis Use-A New Possibility in Future Drug Development for Gastrointestinal Diseases.. International journal of molecular sciences, 24(19). https://doi.org/10.3390/ijms241914677

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