Hematinic: in which a man's sudden deafness

<p> United States food and Drug Administration said, regarding a man after taking viagra, sudden deafness caused by the authority concerned, urging them to begin the investigation. </ p> <p> Further investigation revealed that a total of 29 cases of .sudden hearing loss since, like taking the above three hematinic. </ p> The Agency also said that one-third of patients appear temporary hearing loss, and other cases in the report, belongs to the disease in the developing or eventual outcome is unknown .. <p> These three drugs, viagra aphrodisiac (Viagra) by Pfizer pharmaceutical factory production, sharp s (Cialis) and Liwei (Levitra) by Eli Lilly company and GlaxoSmithKline company manufacturing, in addition to Pfizer's production of treatment of pulmonary drug "citrate .acid Sildenafil "(Revatio), the main ingredient is similar to viagra, also warning list. </ p> <! - AFP Control Code / Caption. left vertical banner --><!-- AFP Control Code End / No. .-> <p> Pfizer Inc. (Pfizer) and Eli Lilly Company (Lilly) have said that they had no data to display any deaf related with these drugs. </ p> The FDA also stated that it is not possible to prove .that these drugs were the direct cause of hearing loss. <p> Pfizer Pharmaceutical Affairs Vice President Sue Beatrice said that viagra was approved in 1998, the drug label marked side effects include "may be induced hearing loss". </ p> Clinical trials .found that occurs after taking viagra deafness chance less than 2%. Since 1998, approximately 30 million men taking viagra. <p> It is understood that the United States food and drug administration in 2005 has issued a warning, viagra, causing a sudden hematinic .blind patients. </ p> <p align="right"> (Practice editing: Chen Dong ping) </ p>.