title: Hua Fo tablets tainted with sildenafil-like compound.
authors.forename: Eric
authors.initials: E
authors.lastname: Wooltorton
mesh_terms: D002170:Canada; D004340:Drug Contamination; D004365:Drugs, Chinese Herbal; D006801:Humans; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D004365:Drugs, Chinese Herbal; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate