Safety of Homeopathic Treatment
The United States Food & Drug Administration considers that there is no real concern over the safety of most homeopathic products "because they have little or no pharmacologically active ingredients". There have been few reports of illness associated with the use of homeopathic products, but the medical literature contains a few case reports of poisoning by heavy metals such as arsenic and mercury found in homeopathic remedies. However, in cases that they reviewed, the FDA concluded the homeopathic product was not the cause of the adverse reactions. In one case, arsenic was implicated, although FDA analysis revealed that the concentration of arsenic was too low to cause concern. Perhaps the main concern about the safety of homeopathy arises not from the products themselves, but from the possible withholding of more efficacious treatment, or from misdiagnosis of dangerous conditions by a non-medically qualified homeopath.
Dangers in misguided advice
Opponents of homeopathy argue that since homeopathy is ineffective, it could indirectly result in harm to patients who refuse medical care (see opportunity costs). For example, a 2006 survey by the UK charitable trust "Sense About Science," revealed homeopathic practices which were advising travelers against taking conventional anti-malarial drugs, instead providing them with a homeopathic dilution of quinine. Even the director of the The Royal London Homeopathic Hospital condemned this practice:
"I'm very angry about it because people are going to get malaria - there is absolutely no reason to think that homeopathy works to prevent malaria and you won't find that in any textbook or journal of homeopathy so people will get malaria, people may even die of malaria if they follow this advice."
Several scientists said the homeopaths' advice was reprehensible and likely to endanger lives. Professor Geoffrey Pasvol, a tropical medicine expert at Imperial College in London was reported as saying "Medical practitioners would be sued, taken to court and found guilty for far less. What this investigation has unearthed is appalling.
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