title: FDA issues warning on "all-natural" herbal product found to contain viagra.
authors.forename: Mike
authors.initials: M
authors.lastname: Mitka
mesh_terms: D019587:Dietary Supplements; D004348:Drug Labeling; D007880:Legislation, Drug; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D028321:Plant Preparations; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D028321:Plant Preparations; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate