Oscillococcinum (commonly shortened to Oscillo) is a homeopathic alternative medicine marketed to relieve influenza-like symptoms. It is one of the most popular homeopathic preparations, particularly in France. Oscillococcinum is manufactured by a French company, Boiron, its sole manufacturer. There are, however, other manufacturers who make similar preparations. Oscillococcinum is used in more than 50 countries. In France, it has been in production for over 65 years.The preparation is derived from duck liver and heart, diluted to 200C—a ratio of one part duck offal to 100200 parts water.This is such a high dilution that the final product likely contains not a single molecule of the original liver. Homeopaths claim that the molecules leave an "imprint" in the dilution that causes a healing effect on the body, although available evidence does not support this mechanism or efficacy beyond placebo.
