From BBC World News:
The Lancet says the time for more studies is over and doctors should be bold and honest with patients about homeopathy’s “lack of benefit”. A Swiss-UK review of 110 trials found no convincing evidence the treatment worked any better than a placebo. In 2002, American illusionist James Randi offered $1m to anyone able to prove, under observed conditions in a laboratory, that homeopathic remedies can really cure people. To date, no-one has passed the preliminary tests.
More here.