Ultra-High Dilutions and their Immunological Impact in Healthy Patients: Evidence from a Randomised Single-Blind Study

Background: The proposal to induce a controlled inflammatory response is gaining ground in treating chronic diseases. Recent studies have explored the influence of homeopathic medicines on sick patients, but there is limited data on their impact on healthy individuals. Belladonna atropa , a plant that contains alkaloids with recognised pharmacological properties, could influence cytokine production, opening new possibilities for understanding homeopathy. Here, we show that the homeopathic remedy can produce a controlled inflammatory response in healthy patients, which may explain its therapeutic effects in sick patients by stimulating the same inflammatory mechanisms through the law of similars. Objective: To evaluate the modifications in inflammatory cytokine levels in healthy individuals following repeated administration of Belladonna atropa in a homeopathic dilution. Methods: Six patients were included and divided into two groups: control group ( n = 3) and experimental group ( n = 3). The experimental group received Belladonna atropa 200c prepared in water, while the control group received water with 10 drops of alcohol. Both groups consumed their solutions every 2 hours for 10 hours. Peripheral blood samples were collected at baseline and 24 hours post-intervention. The concentration of circulating inflammatory cytokines (IL-6, IL-8, IL-12p70, IL-18, IL-23, and IL-33) was determined using flow cytometry. Results: Significant changes in inflammatory cytokine levels were observed in the experimental group. The percentage increases compared with baseline values were: IL-6 (93.87%), IL-8 (85.04%), IL-12p70 (84.57%), IL-18 (53.15%), IL-23 (70.16%), and IL-33 (55.19%). The differences were statistically significant, with p -values < 0.05 for all cytokines mentioned. Conclusion: Repeated administration of Belladonna atropa in a homeopathic dilution was found to be associated with a significant increase in the production of inflammatory cytokines in healthy individuals. These findings suggest that this medicine may have an inflammatory role in immune responses, opening new avenues for its study in contexts of inflammation and immunomodulation.