Definition: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: Can taking Viagra make you go deaf? Hundreds of cases of hearing loss reported among users 
  
 It may help you reach the heights of passion, but Viagra could stop you enjoying the pillow talk afterwards. 
  
 The little blue pills taken by hundreds of thousands of British men may cause deafness, doctors have warned. 
  
 Viagra and similar impotence drugs have been linked to hundreds of cases of sudden hearing loss around the world, including some in the UK. 
  
 Risks: Viagra has been linked to hundreds of cases of hearing loss, leading to warnings from doctors that the blue pills may cause deafness 
  
  
  
 Users in the U.S. are now being warned that the drugs could damage hearing, and the British specialists behind the findings want the same alert to be given here. 
  
 The researchers, from Charing Cross, Stoke Mandeville and Royal Marsden hospitals, asked drug watchdogs in Europe, the Americas, East Asia and Australasia if they had received reports of ‘Viagra deafness’ – hearing loss shortly after taking impotence pills. 
  
 They uncovered 47 suspected cases of sensorineural hearing loss – a rapid loss of hearing in one or both ears – linked to Viagra and related drugs Cialis and Levitra. Eight were from the UK. 
  
  
  
 Another 223 reports made in the U.S. were excluded from the study due to lack of detail. 
  
 The average age of those affected was 57, although two of the men involved were only 37, the journal The Laryngoscope reports. 
  
 It is not clear how long the problems lasted, but this type of hearing loss, more commonly due to infections and exposure to loud noise, usually causes permanent damage in up to a third of cases. 
  
 In a previous study of 29 suspected cases, by the Food and Drug Administration watchdog in the U.S., only a third were classed as temporary. 
  
 The FDA advises users of Viagra, Cialis or Levitra who find their hearing suddenly worsening to stop the pills immediately and see their doctor. 
  
 The British researchers are not sure how Viagra might affect hearing, but it may be that the chain of chemical reactions it triggers have knock-on effects in the inner ear. 
  
 Dr Afroze Shah Khan, of Charing Cross Hospital’s ear, nose and throat department, said: ‘Medical practitioners involved in the prescription of these drugs need to be vigilant about this potential side-effect.’ 
  
 But Britain’s drugs watchdog, the Medicines and Healthcare Products Regulatory Agency, said complaints of hearing loss linked to Viagra are ‘extremely rare’. 
  
 A spokesman added that reports of an adverse reaction to a drug do not prove the medicine caused it. ||||| NEW YORK (Reuters Health) - Is an erection worth becoming hard of hearing? 
  
 A new US study suggests men who take Pfizer's Viagra (sildenafil) or similar drugs for erectile dysfunction may double their chances of hearing impairment, bolstering a Food and Drug Administration warning from 2007 about this side effect. 
  
 High doses of Viagra have been shown to damage hearing in mice, but until now only a few anecdotal cases had been described in humans. 
  
 The study, based on a national sample of American men over 40, found that slightly more than one in six of those who did not take Viagra-like drugs -- for instance, Eli Lilly's Cialis -- were deaf or hard of hearing. 
  
 Among those who took the drugs, however, almost one in three had hearing loss, Gerald McGwin, an epidemiologist at the University of Alabama at Birmingham School of Public Health, told Reuters Health. 
  
 Even after accounting for other factors linked to hearing loss, hard-of-hearing men still had twice the odds of taking Viagra, said McGwin, whose findings appear in the journal Archives of Otolaryngology--Head & Neck Surgery. 
  
 However, he said, more research is still needed to confirm the findings. 
  
 Drug makers already include a "black box" warning about potential hearing loss on these products. But the new results expand on that concern, said Dr. James E. Saunders, an ear doctor with Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire. 
  
 "Before the current paper the focus has always been on sudden hearing loss," Saunders, who was not involved in the study, told Reuters Health. "This study suggests that maybe there are small incremental changes that occur over time." 
  
 While he noted that the study relied on self-reporting of hearing loss, which has been criticized as inaccurate, he said at this point he would advise patients with hearing loss not to take the drugs. 
  
 But for men with normal hearing and erectile dysfunction, comparing a potential side effect to a real problem might tip the scale, he added. 
  
 "The few times that I've had that conversation with patients it's kind of a difficult decision," he said. 
  
 SOURCE: Archives of Otolaryngology--Head & Neck Surgery, 2010. here |||||
Output:
Could Viagra make you, ahem, hard of hearing? Researchers are uncovering evidence that it and other anti-impotence drugs may do just that. The FDA has been warning about possible hearing complications associated with anti-impotence medicine since 2007, but two new reports are raising concerns. UK researchers who surveyed drug watchdogs around the world uncovered 47 cases of sudden hearing loss linked to Viagra and related drugs. Another 223 possible reports from the United States had to be excluded because of lack of details, reports the Daily Mail. Meanwhile, Reuters reports that a new US study finds that taking Viagra could double one's chance of experiencing hearing loss. It found that one in three men over 40 who took the drug had hearing loss; of those not taking it, only one in six did. Scientists say they are not sure how anti-impotence medicine could affect hearing, but suspect a chain of chemical reactions caused by the drugs could be harming the inner ear. A spokesman for Britain's drug regulator says Viagra-related hearing loss complaints are rare, and notes that causality hasn't been proven.