The U.S. Food and Drug Administration on Wednesday approved the first chemical for disinfectants to be used in footwear.
The chemical, called Doxapyr, is a formaldehyde-based disinfectant that is designed to kill mold spores.
The FDA approved the drug on Wednesday for use in shoes that use anaerobic cleaners, or those that do not contain a high level of oxygen.
The approval comes as the FDA is considering whether to approve a new chemical to treat foot and mouth infections.
The agency has previously approved the chemical to use in other products such as soap and water disinfectants.
The company behind the drug, Doxamyl, is not yet ready to begin marketing the drug to consumers, and its clinical trial is still ongoing.
The drug has been approved by the FDA before, in 2008.