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Colloidal Silver Not Approved for Treating Animals

Clell V. Bagley DVM, Utah State University


FDA has received reports that products containing colloidal silver are being promoted for use in the treatment of mastitis and other serious disease conditions of dairy cattle, as well as for various conditions of companion animals. For example, FDA’s Center for Veterinary Medicine has received reports from the Agency's regional milk specialists and State inspectors that colloidal silver products have been found on some dairy farms. Also, recent articles in some farm newspapers and journals promote the use of colloidal silver in treating mastitis and claim that no milk discard is needed.