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Anti-bacterial soaps may not curb bacteria: US

WASHINGTON--After more than 40 years of study, the U.S. government said Monday it has no evidence that the anti-bacterial chemicals used in countless common soaps and washes help prevent the spread of germs, and it is reviewing research suggesting they may pose health risks.

Regulators at the Food and Drug Administration said they are revisiting the safety of chemicals such as triclosan in light of recent studies that suggest the substances can interfere with hormone levels and spur the growth of drug-resistant bacteria.

The government's preliminary ruling lends new support to outside researchers who have long argued that the chemicals are, at best, ineffective and at worst, a threat to public health.

“The FDA is finally making a judgment call here and asking industry to show us that these products are better than soap and water, and the data don't substantiate that,” said Stuart Levy of Tufts University School of Medicine.

Under a proposed rule released Monday, the agency, which monitors product safety, will require manufacturers to prove that anti-bacterial soaps and body washes are safe and more effective than plain soap and water. Products that are not shown to be safe and effective by late 2016 would have to be reformulated, relabeled or removed from the market.

“I suspect there are a lot of consumers who assume that by using an anti-bacterial soap product they are protecting themselves from illness, protecting their families,” said Sandra Kweder, deputy director in the FDA's drug center. “But we don't have any evidence that that is really the case over simple soap and water.”

A spokesman for the cleaning product industry said the FDA already has “a wealth of data” showing the benefits of its products.

An FDA analysis estimates it will cost companies US$112.2 million to US$368.8 million to comply with the new regulations, including reformulating some products and removing marketing claims from others.

The rule does not apply to hand sanitizers, most of which use alcohol rather than anti-bacterial chemicals.

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