Short answer (one line):
No reliable scientific evidence shows that homeopathic preparations of Cannabis indica meaningfully help people with IBS-D (diarrhea-predominant IBS). Mechanistically, high-potency homeopathic medicines contain no measurable THC/CBD, so they cannot act like medicinal cannabis; any reported benefit is most likely a placebo or non-specific. PubMedScienceDirect
What exactly are we talking about?
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“Cannabis indica” (the plant): a species/chemovar of cannabis that contains cannabinoids (THC, CBD) and terpenes. Pharmaceutical or herbal cannabis products deliver those chemicals and can affect the body’s endocannabinoid system (ECS). PMC
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“Cannabis indica” in homeopathy: a homeopathic remedy made by serial dilution and succussion of a mother tincture of the plant. Typical potencies used by homeopaths (e.g., 30C) are diluted far beyond the point where any original molecules remain. Homeopathy’s claimed mechanisms (like “potentisation”) are not supported by mainstream chemistry or physiology. WikipediaScienceDirect
Important distinction: a homeopathic “Cannabis indica” remedy ≠ an herbal tincture, cannabis oil, or pharmaceutical THC/CBD product. The former does not deliver cannabinoids in measurable amounts; the latter can. WikipediaPMC