Cairina moschata
Oscillococcinum is a homeopathic preparation made from Muscovy duck livers and hearts manufactured by the French company Boiron; similar products are also available from other manufacturers. Typically diluted with lactose and sucrose to 1:10400 (far less than one in one googol), they are advertised to relieve influenza-like symptoms, but no evidence has been found of their efficacy.