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Today the FDA announced that a group of Chinese “health supplements” from Puerto Rican-based Shangai Distributor, Inc., contain undeclared sildenafil, the active drug in Viagra, and are therefore illegal. The supplements are named Super Shangai, Shangai Ultra, Shangai Ultra X, Lady Shangai, and (perhaps the best name of the product line) Strong Testis. Shangai Regular, also known as Shangai Chaojimengnan, was found to have “an unapproved substance with a structure similar to sildenafil that may cause similar side effects and drug interactions,” and is therefore also included on the warning list.