In a recent study, rats were experimentally treated so that they would develop liver toxicity and liver tumours. They were then given 'Chelidonuim' - a homeopathic medicine known for it's liver protective effects. The potencies used were 30c and 200c - both of these remedies are beyond 'Avogadro's number'.
Based upon the structure of the trial, I believe that it is unlikely that the placebo effect was responsible for the protective action of the homeopathic remedy.
The experimenters concluded that "Both the potencies of Chel exhibited anti-tumor and anti-oxidative stress potential against artificially induced hepatic tumors and hepato-toxicity in rats. More studies are warranted."
Read the paper here:
Chelidonium majus 30C and 200C in induced hepato-t... [Homeopathy. 2010] - PubMed result
Jayney Goddard is one of the world's leading experts in the field of complementary medicine and natural healthcare. She is President of The Complementary Medical Association and is also a Fellow of The Royal Society of Medicine and a Fellow of the Royal Society for Public Health.