The U.S. Federal Trade Commission is now requiring the makers of homeopathic "drugs" present reliable scientific evidence of efficacy in order to sell them in the U.S. market. This will be difficult since homeopathy is a pseudoscience. The most exhaustive review of the evidence for homeopathy was done by the Australian government where they concluded it is junk science and the treatments do not work.
PositiveTip: Buyer beware! Avoid products fo which there is no evidence to support the health claims.