The bark contains quinine, which helps in the treatment of malaria but also causes fevers. Critics maintain that such minute doses are unlikely to have any significant effect on the body. Homeopathy is very popular in Europe, especially among the Royal Family of Britain. It is also very popular in India, where there are more than 100 schools of homeopathy. No matter what ails you, treatment with a diluted like agent is the cure.
Experience teaches otherwise.
There seem to be countless examples one could come up which would contraindicate homeopathy as a reasonable approach to the treatment of disease. One of the stranger tenets of homeopathy, proposed by Dr. Hahnemann himself, is that the potency of a remedy increases as the drug becomes more and more dilute. Homeopathy's supporters point to clinical trials which indicate a homeopathic efficacy that cannot be explained by the placebo effect. Critics contend that such studies are poorly designed, methodologically biased, statistically flawed, etc. Homeopathic advocates give ardent testimonials to the curative powers of their remedies.