List of products in the National Drug Code with proprietary name adefovir dipivoxil. This medication is used to treat a chronic viral infection of the liver (hepatitis B) in people 12 years of age and older. It works by slowing the growth of the virus, helping to lower the amount of virus in your body. It is not a cure for hepatitis B and does not prevent the passing of hepatitis B to others. This medication is a nucleotide analog.