The FDA has issued a warning to consumers not to buy or use Super Shangai, Strong Testis, Shangai Ultra, Shangai Ultra X, Lady Shangai, and Shangai Regular (also known as Shangai Chaojimengnan) products. These products are marketed as dietary supplements to treat erectile dysfunction. The problem with the products, according to the FDA news release, concerns the fact that the products contain undeclared active ingredients of FDA-approved prescription drugs for ED. Additionally, the source of the active ingredients is unknown so the safety, effectiveness, or purity of the ingredients can not be known. This is another instance of the FDA having to step in concerning a dietary supplement because it is improperly marketed, made with unknown or unapproved ingredients, or the product label is inaccurate. All of these issues can pose huge safety issues for the consumer.