The disclosure provides oral compositions and methods of using such compositions in treating subjects infected with one or more hepatic disorders. The compositions include lysates or cell wall extracts of one or more gram positive bacteria, exhibit particular activity against hepatitis C virus (HCV), and may be useful in treating those infected with HCV as well as other hepatic diseases or disorders. Also described are methods of treating a hepatic disease or disorder by administering a therapeutically effective amount of at least one therapeutically active agent capable of upregulating or downregulating the Complement system pathway, wherein the therapeutically active agent enhances the formation of one or more convertase enzymes.