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Dr. Cannabis

IBS and inflammatory bowel disease

Digestive conditions with pain and disrupted bowel function. Symptom relief may help; disease activity does not appear to change.

Insufficient evidenceMixed findings, a single poor-quality study, or the question has not been studied.

What the evidence says

NASEM did not reach a positive conclusion. Trials suggest symptomatic benefit without change in objective disease activity.

Trials in Crohn's disease have generally shown symptomatic improvement without corresponding improvement in objective markers of inflammation or endoscopic disease activity. People feel better; the disease does not measurably improve.

That distinction matters clinically. Feeling better while inflammation continues unchecked can delay treatment that would prevent damage.

Cannabinoid hyperemesis syndrome is a particular hazard in this group, because its symptoms overlap with the underlying condition and heavy users may attribute worsening vomiting to a flare.

What to ask for

This is a starting point, not a prescription. Take it to a licensed dispensary and ask to see the batch certificate of analysis.

Suggested ratio
Balanced, low dose
Starting THC dose
2.5 mg
Commonly chosen profile
Balanced hybrid
Time of day
either

Cannabinoids

  • THC

    The main intoxicating compound in cannabis. It drives most of what people mean by "high," and it is also the cannabinoid behind most documented therapeutic effects.

  • CBD

    Non-intoxicating. The only cannabis-derived compound with an FDA-approved medicine behind it, and the cannabinoid most often used to soften THC.

Terpenes to look for

Commonly present in products people choose for this. Terpene effect claims are preclinical — this is a way to find a product again, not a promise about how it will feel.

Formats

  • TinctureOnset 15–90 min · lasts 4–8 h

    Liquid extract dosed by dropper. The most precise way to titrate an oral dose in small increments.

  • CapsuleOnset 30–120 min · lasts 6–8 h

    Swallowed softgel or capsule. Behaves like an edible with pharmacy-style consistency.

Get a personalised starting point

Answer four questions and we will adjust the dose for your experience level and find licensed dispensaries near you.

Get guidance

Talk to a doctor if

  • • You have blood in your stool
  • • You have IBD — do not reduce prescribed treatment
  • • You have unexplained weight loss or fever

Related conditions

Sources

  1. NASEM 2017, Committee Conclusions (summary PDF of all evidence-tier conclusions).Accessed 2026-08-15.
  2. Cannabinoid Hyperemesis Syndrome. StatPearls, NCBI Bookshelf. Last updated 2023-07-03.Accessed 2026-08-15.