The present invention relates to novel and non-obvious methods and media for preparing fermentation products of Cordyceps sinensis. The present invention also relates to novel and non-obvious compositions comprising fermentation products of Cordyceps sinensis produced by the methods of the invention or obtained from other sources. The present invention also relates to novel and non-obvious methods of treating patients by administering the compositions of the invention. In one embodiment, the Cordyceps sinensis mycelia is Paecilomyces hepiali mycelia. In another embodiment the compositions of the invention are used to treat patients infected with hepatitis C.
